<human>: So ... we started as a fun hook up sort of thing.
Being the idiot I am, I just kept going with the flow but she wanted something more serious. Apparently she was head over heels for me from the start. She confronted me on how closed I am as a person and during our months of dating I got really close to her so I opened up emotionally. 

Just when I reached my peak of being an open person, she dropped me like a rock because she " Didn't have the same feelings for me as she did when she first started seeing me ". I got really attached cause we were practically living together and now she called it off and said she wants space. The whole we're just friends deal. I find it hard to forget about her cause she got me to open up so much as a person and then she just left me. I'm a bit of a hopeless romantic so I'm still a bit hopeful that MAYBE we'll cross paths again and hit it off. The more I keep chasing her the more complicated things get. What do you recommend I do?

Can you succinctly summarize the text in 1-3 sentences?
<bot>: We started dating, she was upset I was closed.... I opened up... she left me... I keep fighting for what I want but it just keeps getting complicated. She's set her mind on not getting back.