What a way to get attached to someone.
The thing is, with people that cheat (even tho we don't have the full story of the lady yet) is that if you, hypothetically, end up with them: can you fully 100% trust the person for them not to do it again? Would you be able to live accepting them? (Well, they are a fucked up pair of individuals for better or worse so they'll have to live or die their own way)