LD girlfriend visiting, still cheated on her

I had a LDR with an attractive woman who was ok, but, just didn’t “do it” for me. Even thinking about sexier women didn’t get me excited enough for her. During her last, 2-week visit, I cheated on her twice. Once while she was on her hours-long walk, and once when we were fighting at a restaurant one night and I left and met up with a FWB who lived four streets away from me. I actually hoped I’d get caught by the LDR gf both times, just so she’d leave on her own. The FWB was a bit crazy and bi-polar, but, had an amazing body and was wild in the sack. I went right to her after I left the argument with the gf.