You're probably looking for games with just corruption or cheating elements instead of ntr. What you described is kinda what ntr is. Usually a male protag who is sad about their GF cheating on them, or otherwise being forcefully cucked. I mean there's also netori and netorase, but most flock to the "get cucked and sometimes cry about it" netorare style.sometime I wish there's more game with that but less ntr, not really a fan of "oh no Im so miserable my GF just got fucked by a someone else and I will just cry about it".......
can I ask for ntr game recommendation here?