Broken engagement. What to do next?

My fiancé cheated on me and I'm in a transition period. I'm trying to put myself together. Started looking into bumble, and thinking it's too easy to meet someone new these days. What's some signs too look out for?

I'm also considering returning my ring. I have mixed feelings about what to do. Any advice?

Thought about closing the door on my former fiancé by telling his parents what happened because I don't think he will.