A person who has cheated once, will continue to cheat even if they cut off all contact with the person they have cheating with. It's not that he has found another girl he likes, he just wanted to have an affair. That's why, if he really found a girl he liked, he would probably properly break up with me and go with her. But if he's cheating on me with another girl while keeping me as a backup option, he just wants to cheat on me, not that he really likes that girl. So even if I say I've found out him cheating and force him to end that affair, he'll just cheat once again with another girl. That's why he, who cheats on me while keeping me as the backup option, will definitely keep cheating, so I should break up with him. If he were a truly earnest person, he would properly break up with me if he found another woman he liked. Then, to rebuild my feelings after the breakup, I could immerse myself in hobbies and other fun things, or pursue a new relationship. That's why I should break up with him, I should break up with him, I should break up with him, I should break up with him, I should break up with him, I should break up with him, I should break up with him, I should break up with him, I should break up with him, I should break up with him, I should break up with him, I should break up with him, I should break up with him, I should break up with him, I should break up with him, I should break up with him