<human>: I'm going to preface this with the fact that I think I'm in the wrong in this scenario and that I've ultimately asked for this. 

I dated a girl my freshman year of high school, my second girlfriend, and (as early high school relationships go), we didn't do much, I got bored because I was an immature child, and we were both fine. We became friends again shortly after, and I found myself drawn to her again, and her to me. This is now sophomore year, and I managed to fuck this up too. I disregarded it in fear of hurting her again somehow because I'm a self doubting doublethinker. 

So now its junior year, and I was at a party with some friends, and I spotted her hooking up with someone I hold in low esteem (to put it lightly), and I couldn't have felt worse the following few days. I don't know why, but the wave of jealousy and regret that came over me put me in a deep hole of more self doubt and confusion.

I know I am still attracted to her. I know I messed up two (At least) separate occasions to make things right with her, and that by this point it's foolish to try anything. 

I don't know what to do.

Can you give me a shortened version of the text?
<bot>: I fucked up several opportunities with someone I deeply care about due to self doubt and immaturity, but I still am attracted to them, should I move on, or pursue it again like a hopeful idiot?