MC (preferably male) must forgive something that the love interest does, and there must be some struggle to do so

I dont want any yuri or yaoi

also I would prefer if its a manga with a good amount of chapters translated

360 Degrees Material - Technically female mc, but male lead has to deal with a lot.

The main guy and girl are dating. He has to deal with the fact that she gains feelings for this douche who is nice to her.

Masamune-kun no revemge