<human>: Summarize the given text in a few sentences.

I recently made a visit to the town (where my ex goes to school) to see a friend. When I was looking for a parking spot, I saw her walking hand in hand with the guy with whom she cheated on me a month ago (he goes to school 2 hours away). They saw me too. I didn't stop. I pulled over eventually and texted her (breaking NC) and said that we needed to talk. She admitted that they were in a relationship now.

I just need some support. I feel like an absolute piece of shit: she cheated, told me, and then immediately hopped into bed with the guy. I mean, should I be mad? I invested a year and a half of my life into a relationship with this woman, only for this to happen. I know that this subreddit will say she can do whatever she wants, since she broke up with me after the first time, but she is clearly taking him out and introducing him to her friends as her boyfriend, only a month after ending things with me (because of what she did with him). Isn't that at least a little bit morally repulsive? I really want her to hurt for what she did, but she clearly isn't, since she has him to turn to for this repulsive physical comfort.
<bot>: Saw ex with guy she cheated with a month ago; she saw me too. She admitted they're now dating. Need any kind of support /r/relationships is willing to give.