funny, it's the game that constantly throws these characters at me, even if I reject them they keep appearing, it's as if the game told me "Lena is going to be a bitch whether you like it or not" and Ian well ian not even with all her stats to the maximum can face anyone.
I mean the characters listed: Mike, Mark, Robert, Axel, and Jeremy are all avoided easily.
Robert just reject him early on, Mike just don't flirt with him at the club during the first meeting, Mark same thing don't flirt with him/blow him at the first meeting, Jeremy don't have your Lena BBC thirsty, and Axel don't meet with him early on.
Sure you meet them again, but that's because they live in the same city and frequent the same bars and clubs. Lena isn't forced to sleep with any of them after rejecting them. Also you need some pretty specific steps for Ian to even be a cuck and he is given the option to break out of it at multiple points.