What is wrong with me?

Bruh, sometimes I really wonder what is wrong with me. I mean, I sometimes feel this urge to cry and feel this emptiness in my chest quite literally. What's worse is that my mood and even thoughts depend completely on the person I am fixated on, and it doesn't even matter if that person is a friend or a partner; my whole mind literally depends on my interaction with said person. Like- What is wrong with me? TT

I try to think logically, but it's like my mind thinks two different things at the same time, like I logically crash out internally. Idk, it's weird :')

The funny thing is, I get detached if I keep crying or angry for too many hours(because I also cry while angry lol), and I either get like some sort of hatred for that person or simply stop caring until that person does something that makes me feel seen, and then I am completely fine, even if that person didn't even do anything wrong TT or the other way, i get happy and excited even if that person did something wrong just because they gave me attention TT

I try to be logical, but sometimes my mind really is messed up. 😭