<human>: Give me a shortened version of the text

Girl and I broke up a few months back. She was my first serious relationship, and with my inexperience I fumbled quite a lot, while I was her third or fourth. After a year and a half a variety of reasons, distance considering I moved away, the love fizzling, neither of us were really in a good place with work, life, etc.

We did it over phone after a week of not talking to each other and ever since we didn't speak once. I deleted Facebook, hit the gym, threw myself into work, fixing myself because changing for the better was the only option.

But still I care for her very much and missed her terribly reliving all the good times we've had. Over the months I spent a lot of time in my head and realized all the times I was a shitty boyfriend.

Fast forward to now where a mutual event got us in the same room for first time in months. I put in some effort wanting to re-engage and start a friendship again but instead it ended up much like that scene of expectation versus reality in 500 Summers.

She gave me the cold shoulders the whole night. Her friends acted in solidarity and did the same. Late into the night, while obviously she's been having some fun and had a few to drink I catch her form a corner making out with some random dude. The same random dude that sleazily made out with every drunk girl there. She did this again when I was in her view.

Broke my heart.

I don't know if she did it to spite me, to punish me for the times I hurt her, plain because she doesn't care anymore, or if it's just the booze doing the work. One thing though it does make me feel like this weight of guilt, moping around, and breakup misery was off my shoulders.

So million dollar question. Do I let this go for the sake of being the bigger person and try to be friends? Do I just let this go completely, burn this bridge, and move on?
<bot>: Girl/boy breakups, months later reconnect but girl making out with dude, maybe to hurt me? maybe it means nothing? Move on?