So I've been with the girl for four months now and I really was excited to be with her all the time and kiss her had lots of sexual attraction for her had great laughs with her. But it all sort of slowly stopped after the first two-three months which was sad becuase I heard if you did right things you can make the honeymoon phase last forever, but how?

Also she is still massively attracted to me cries when i go home for a night becuase she can't sleep without me, won't look at another guy, but my mind still wanders and I do wonder what it would like to have a different girl under me from time to time now I know how easy it is to get women interested. But the real reason I'm making this post is becuase for the last four days she has walked out and said she is leaving and that she wants to break up becuase I basically don't treat her well and that I don't care. I'm never needy with her and i reguarally use push-pull to keep her doing what I want. Every time she says shes going and its over she lingers to wait to see if i follow after her, and then she says something like "make sure someone takes my library books back keep my laptop i won't be needing it" later explaining her life isn't worth living if I'm not in it. Last time she walked out I was so emtional drained (its likely i have depression or mental imbalance due to my rapid change in moods) I din't follow her, and she just waited in the hallway and then came back in my room saying its too late to go home which it was it was like 5am in the morning so she would sleep on the floor. After I had come round a bit more it felt like a panic attack abit I pulled her on the bed and helf her tigh twhilst she cired more than I have ever experienced anyone cry before, I just barely understand the words "I just don't want you to leave me" This is making me quite emotional just writing this! Becuase I do love her, but I don't knwow aht to do becuase it does stress me out not having my own space from time to time but she can't seem to manage too long without me, she's suffered abuse in her past from her father and her mothers secondary partner so that might be why she is so clingy, which I do enjoy but not when its too much! The strangest thing is shes the funniest, most attractive girl I know hb10 easily and everyone is so jealous of me!
Whats wrong with me?
Whenever I suggest we have two nights apart she gets very upset and she goes cold and distant alot from my angle to get more attention but it doesn't work becuase I just comopletly ignore her when she does shit like this and am quite rudely saracastic!
Basically I'm a prick who loves a girl who wants to be less a prick and not fuck up the relantionship from being too stifled!

btw I appreciate anyone who even takes the time to read my ramblings becuase i do feel quite indulgent writing this post! Any help/advice would be recieved gladly!