<human>: Provide a brief overview of the text.

So I started dating my ex girlfriend a couple years ago during high school, back then she told me that she would eventually have sex with me as the relationship progressed, and things didn't work out in the end so we fell apart. I missed out on the oppurtunity of having sex with her, but I didn't really care back then. We were really intimate with eachother but I never penetrated.

However, fast forward 3 years and we hang out for the first time after a long time. We hit it off really good making and feeling eachother but I held off because I wanted to take things slow and she was a lil disappointed I did't take things further. Now she doesn't want anything to do to me probably because I wasted her time. In the long run we don't make a good couple, but we are only good for each other when it comes to messing around. Now that I missed out the chance to have sex with her twice, it has hit me hard! I can't stop fantasizing about having sex with her and its very unhealthy, im starting to get anxious and cant sleep well, and its interfereing with my life greatly.

How can I get over this feeling!? I hate it. This is the only girl thats on my mind and not in a good way! Help
<bot>: Missed out on having sex with ex girlfriend a couple times, regret itx and now its haunting me. I want it to stop and go on with my life