If you don’t take the time to sort out your finances before signing a lease, don’t be surprised if you find yourselves arguing about money in ways you never did before. "This can include things like not paying bills on time, lack of savings, and so on,” says Bennett.

Once it comes time to pay bills, all sorts of proverbial skeletons can come out of the closet, too, like credit card debt and other spending problems. "This can be hard to fix since financial values are taught young and it’s difficult to get someone to change," he adds.

That said, doing things like setting up a budget, being honest, and playing to each other’s strengths can help keep financial arguments from spiraling out of control.

Moving in together means you’ll see each other at your “worst” on a way more regular basis, and that can certainly create more opportunities to let each other down, Ana Sokolovic, MS, a licensed psychotherapist, tells Bustle.

With the added pressure of being together all the time — even when you’re irritated, depressed, overwhelmed, etc. — you may find that you get burnt out or don’t know how to help one another, which can lead to hurt feelings.

That said, “showing your vulnerabilities can lead to deeper understanding and loving,” Sokolovic says, which is actually a perk of moving in together. It’ll be up to you and your partner to decide how you create space for each other and react to this new dynamic.

Chances are you won’t automatically agree on how to divvy up chores, especially if you and your partner have different standards of cleanliness. You might even be surprised at how messy the other is now that you witness each other’s clutter every single day. So if you move in together, and find yourself knee-deep in a mess — or maybe your partner's the neat one, and won't stop arguing with you about leaving dirty dishes in the sink — the stress can certainly lead to a breakup.

To keep it from becoming a problem, you’ll need to communicate and compromise, Bennett says. The neat partner might need to accept a little mess as a condition of love, and vice versa. It may also help to come up with an agreement about chores early on so that resentment never has a chance to build.

You might not have noticed your partner's messiness levels until after you start sharing a space, and the same is true for each other's quirks. What was once cute, for instance, can suddenly seem extremely irritating when you deal with it every day. Think along the lines of chewing loudly, leaving cabinets open, forgetting to turn off lights — the list goes on and on.

These things aren’t a big deal but they can start to feel that way if you aren’t used to sharing a space — especially if you never take the time to discuss ways to possibly rectify these habits and live together in harmony. "In many cases, solving this just involves a little communication,” Bennett says. "Since they’re little habits, they can be easily changed. Just be sure to speak up before things spiral out of control and everyone is frustrated and angry."

For many couples, moving in together signals a major step forward in the relationship. It often means you're not only a couple right now, but that you plan to be for a long, long time.

Once the bags are unpacked and you’re looking toward the future, however, you may realize that you don’t actually want the same things in life. If one of you sees moving in as a step towards marriage and the other doesn’t, therapist Heidi McBain, MA, LMFT, LPC, RPT tells Bustle, it can quickly become a problem.

It's important to remember that living together isn't the same thing as being married. That'll need to be a separate discussion, and one you two you should have if it seems you aren't on the same page. The strongest couples check in with each other on a regular basis to make sure they’re still heading in the same direction.

It may also quickly come to light that one of you requires a ton of alone time while your partner craves more attention, or vice versa. If the topic of alone time isn’t addressed early on, it can lead to hurt feelings and stress — and maybe even a breakup.

Being able to talk openly about your need for personal space is crucial. “You’ll want to state your needs, state your desires, and negotiate," clinical psychologist Dr. Josh Klapow, tells Bustle. "No negotiation is a dealbreaker."

It’s also not uncommon for couples who recently moved in together to cross each other’s boundaries, often unknowingly. If you don’t talk about it, your partner might not know that you like to be alone before bed, or that you need quiet time after you get home from work.

You might notice that you need to figure out how to spend some time apart. But you also might notice other behaviors that cross other types of boundaries, like if your partner's tendency to snoop.

"Snooping issues may start to surface while you are living apart, but simply put, once you join forces and your partner has access to things that were private, their behavior can become more noticeable,” Klapow says. Unless you're cool with them looking at your phone, or reading emails over your shoulder, you'll want to have a conversation about it; not only for the sake of creating rules in your relationship, but also to discuss the implications of their snooping.

"It may be a bigger problem about trust," he says. "But it could be as simple as helping them learn how to have privacy while living together." You won't know unless you talk it out, and start working on the issue together.

“As living together becomes more familiar, the excitement can start to fade,” Sokolovic says. It’s a natural part of getting busy and settling into a routine, but it can start to feel like there’s a problem if you don’t acknowledge it.

“It is important not to interpret this change as ‘falling out of love’ but as an invitation to bring novelty, playfulness, and creativity into your lives,” she says. Instead of arguing or worrying that your relationship is going downhill, come up with new traditions and ways to enjoy each other’s company.

Plenty of couples move in together and fall into a sex groove where they hook up on a regular basis. But for others, "intimacy can feel very different once they are together every day," Klapow says. "Moods, physiology, and feelings can change." And it can take a while for some couples to adjust.

It also might become a lot more obvious that your desire levels don’t match up, or that one of you is craving sex a little less often, now that the option for sex is more available.

"Discussing sexual needs wants, desires, fears, is critical here,” Klapow says. Once you chat, it’ll be easier to sort things out and come up with a routine that feels right and comfortable for both of you.

Moving in together means communicating more, saying when you'll be out late, and doing more together than you might’ve done when you were living apart — even if it’s the little things, like running errands. And it can be a struggle for some couples.

"If a partner wants to keep everything the same as when they were living alone (when they eat, how they eat, bedtime, wake time, hobbies, social life, responsibilities,) and refuses to check in with you it can be a dealbreaker," Klapow says.

Of course, you might agree as a couple that it’s totally fine to forgo constant communication. But if one of you feels left out of the loop it needs to be addressed. Oftentimes, it takes a while to figure out what’s right for your relationship, but it can be done.

Before moving in together, hanging out was a novel experience. You set up dates nights and did fun things, which made your relationship feel exciting.

But now that you see each other on a daily basis, you may find that you start taking each other for granted, Sokolovic says. This is when a relationship can start to feel boring and predictable — and that can lead to all sorts of problems, like cheating, as a way to “spice” things up.

“Prioritizing and planning quality time and keeping relationship rituals (or creating them) is an important part of making a relationship work,” Sokolovic says. So remember to talk about these things early and often when moving in together, and you should be able to avoid a lot of the post-move-in problems many other couples experience.

Not all couples clear the proverbial skeletons out of the closet before moving in together, so you never know what might crop up once you're sharing a space. And, while your partner has a right to their privacy, it's certainly OK to ask them about things you've noticed or picked up on, and see why they've been keeping it a secret — especially if you think it might affect you or the future of your relationship.

"The best thing is to talk about it, openly and honestly," Dawn Wiggins, EdS, licensed marriage and family therapist, tells Bustle. "Get an idea of how your partner deals with their struggles. Do they have adequate care from a therapist or psychiatrist? Do they have a good support system?" If they have a plan, and can start being honest with you, it doesn't have to be a dealbreaker.

Living with another person can be difficult, and it'll definitely take a minute before you fall into a routine, and get used to this new lifestyle. So give yourselves time to adjust, and always discuss issues as they arise. If you can make a plan, and be honest with each other, even big problems like these don't have to spell the end of your relationship.