1. Sometimes they have off days

Sometimes, they will have completely normal days—they will be able to function without a problem. Even with those good days, there will be days that they just break down. They won't want to talk to people. They won't want to function like normal adults. All they will want to do is sulk around and be in their own little world.

2. They overthink EVERYTHING

You could change your tone slightly and they might think they ruined everything. If instead of a "good morning, baby" text, you send a "good morning", and they'll think about what they could have done to upset you. They'll wonder if you're just waiting to end things at any second.

3. They need more reassurance than usual

Sometimes, you just need to tell them how much you love them. They need you to tell them that they matter and that they are pretty, handsome, or whatever. They need to know that you care more than they need to know that the sky is blue.

4. They have really good days

Even though they have really bad days—days that literally make you question if they are actually human or just a figment of your imagination—they have extremely good days. There will be days that they will be so happy that you wish they would just sit down and be quiet for two seconds. But they are good days.

5. They second-guess their every step

Situation: They go to buy you a drink, but you tell them that you honestly don't care what they get you. They would panic and worry about it. They will think that you're just testing them and are waiting for them to mess up.

6. Sometimes they just want to stay home and do nothing

Being around people will literally exhaust them. After a few hours, they will just want to go home and sleep the day away. So give them days at home, just the two of you. Read a book, watch a movie, have a nap date—just do anything to give them time to regenerate.

7. They will always want to please you

They will always be worried that they are going to upset you. They will do anything and everything for you. If you don't tell them to stop doing things for you, they will focus their life on that very thing.