<human>: Hey reddit......I'm feeling horrible right now......my girlfriend and I have been dating for a while now and I've noticed that it seems like she has feelings for her ex (they havent been together for over a year), I brought it up and she started crying asking what to do, and I told her she could limit how much they talk but I dont want to be controlling. That and the fact that she's getting concerned with her being uncomfortable with being naked around me. It just feels like she's still in love with him sub-consciously, or something...... I just dont know what to do or how to react........I've already told her I loved her and it's true, I believe I always will and I told her no matter what happens I'll always support her and be there if she needs me........I just need some insight or something to try........I hate feeling like I do...........it feels like I'm just something to pass time even though I know I'm not, she has even told me I'm the best boyfriend she's ever had........but then on days she talks to her ex turns around and without thinking about it calls him her boyfriend then gets upset and cries saying there has to be something wrong with her. Anything anyone?

Summarize the given text in a few sentences.
<bot>: girlfriend seems to be hung up on an ex that she hasn't been with in years sub-consciously and doesn't know what to do about it.