I’m in a really complicated situation right now. I met a guy online—I’m 22F, he’s 33M, but he told me he was 29. We started off as FWB, and I started liking him a little, but nothing serious. He never invited me to his place, and eventually, I found out he has a fiancée and is planning to marry her in less than a year. I looked her up online, and now he’s begging me not to tell her. He’s saying he’ll change and that I’d ruin their lives if I told her because she’s financially dependent on him, and this would break her. I’m so against cheating, and I hate that I was unknowingly the “other woman.” I feel awful for his fiancée and for not telling her yet. He’s cheated with a lot of women, probably over 10. I feel stressed and really don’t know what to do—I just feel terrible about staying silent.