<human>: Me: 21M

Her: 22F

So started seeing my girlfriend in january, was sleeping with her since december, so over the past few months amongst partying etc sex has pretty much stopped, she has been fairly sick and stuff so i put it down to that, then it became constant excuses and staying up with friends and kind of feels like she is flatout avoiding bed with me or even spontanious sex or anything and now i think its something to do with me.
I have directly asked her and she just says its because she isn't feeling good about her own image as she has put on a little bit of weight and i have told her that i feel like im unwanted and un-attractive and she also has complained that i have not been affectionate enough so i try harder and then i get im to demanding and smothering her!
I'm at a loss reddit! I'm feeling so worthless to my girlfriend and it seems she doesn't care what can i do!?!?!

-Mystik

Can you give me a shortened version of the text?
<bot>: Had lots of sex now next to none feeling unwanted and un-needed! can't do anything right for her HELP!?