<human>: Could you distill the essence of the text into 1-3 sentences?

We just broke up.

I'm kind of a mess right now, so I'm really sorry if this isn't structured.

She's cheated on me in the past, and I forgave her. Then she started talking to some guy a few months ago. But recently, blocked all contact from him because she wanted to be with me. Turns out they kissed a few times.

Clearly she isn't stable, and I know this relationship is toxic. After dealing with someone cheating, and trying to work the trust up again, I know when enough is enough.

I just don't know where to go from here. I feel incredibly alone. All my friends are doing their own thing. None of my friends even know my relationship has been rocky for the past few years.

I'm miserable. I would really just like someone to talk to.
<bot>: I found out my girlfriend who has cheated on me in the past also kissed another guy "a few times" recently. It's done. I'm incredibly alone.