1. You can share any aspect of your life with them.

No matter if you’re telling them about a boy you like or about drama outside of your room, you know you can always count on one another to keep secrets safe.

2. Your closet becomes their closet, and vice versa.

Going out and need an outfit but don’t like your clothes? Their clothes are always there for you to borrow.

3. You slowly start doing everything together.

Because being in the room with each other 24/7 isn’t really enough, you start eating meals together and take the same classes just so you have an extra friend in the class.

4. You start reading each other's minds.

It’s 2 AM and you both just got home from a night out. Since you know each other so well, instead of going to sleep, you order food because it isn’t a night out until you order pizza.

5. You tag each other in at least three Instagram memes per day.

What else is there to do when you’re bored in class with no friends to talk to?

6. You tell each other about your day as you’re falling asleep.

If you guys don’t talk about your day and laugh about how you slipped on ice earlier that day, are you guys really that great of friends?

7. You occasionally go out together even though you have different groups of friends.

Because you would probably start fighting if you spent each weekend out together, you reserve going out with each other for a few times a month.

8. You can go a whole break without seeing each other and come back as if it’s like you both never left.

Even though you live far from each other at home, your roomie is one of those people whom you can go a while without seeing, but reunite and pick up conversation where it left off.