Ever regret hooking up with someone?

This was the first time I hooked up with someone who I wasn't into at all. I had drank a lot of alcohol that night so inhibitions were down and it isn't the first time I had been really drunk around this girl but for whatever reason it happened.

I was super depressed the next day, I regret doing it and I feel very strange about it, like I settled for something Iess of what deserve (sounds very stuck-up but I'm not trying to be). I'm not at all attracted to this girl, what happened means nothing to me and I don't know how to deal with this.

To top it all off, it made me think of my ex a lot. Basically she had just done a complete 180 and decided to not talk at all anymore and the day after I hooked up with this other girl it had been a month since I've heard from her at all. I miss her a ton all over again and it's terrible because I thought I had made lots of progress on moving on from her. Anyone been in this situation before, how did you cope/deal with it?
Ever regret hooking up with someone?
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