1.
When you still text each other even though you're in the same room:
2.
When you get bored in the bathroom:
3.
When you have a sleepover and realize there's no such thing as "your side of the bed":
4.
When you vow to hate the same people:
5.
When you haven't seen each other in four hours, so you have to FaceTime:
6.
When you know you'll always have someone to take care of you, no matter how drunk you get:
7.
When you stalk a potential love interest together:
8.
Or when you drink too much wine and they try and stop you from texting your ex:
9.
When there's no one else you'd rather meet the delivery minimum with:
10.
When you struggle to hit the high notes in the car together:
11.
When you take as many pictures as necessary to get the perfect Instagram:
12.
When they're always there when you need a shoulder to cry on:
13.
When you can stay in and do absolutely nothing but still have fun:
14.
When you always wait for each other to watch your favorite show:
15.
And when you're pretty much perfectly in sync all the time: