I (F22) accidentally found out my fiance (M29) has cheated in every serious relationship he’s been in. How do I confront him?

I am absolutely devastated. I was planning on marrying my fiance in a year. And then I found out this: <br><br>Most of the time, when my fiance says he has to go to work, he doesn’t. In fact, he lied to me about his job this whole time. He works as a personal trainer at our gym, which is how we met. He told me as an independent trainer, he sets his own schedule. But in reality, he works a shift, 8 hours a day, and is only training clients at the gym 4 hours a day, 6 days a week. <br><br>I have no idea why he lies. I couldn’t care less about money, I make plenty of my own. I was more concerned about the fact that he lies to me. <br><br>But we already know that. I finally decided to follow him to work one day, because I wanted to see the other side of his life. Where does he really go? <br><br>I followed him to the parking lot and sat in my car, and I saw him get into his car and drive off. I tailed him to a nearby park. I sat in my car while he got out and walked into the woods. I eventually followed him, and I saw a woman (another trainer) sucking his dick. <br><br>I got out of there and went home. I confronted him and he admitted to cheating for months. I asked for the real reason he lied about work and he said it was a weird power thing. He said he feels important when I ask him about work.<br><br>He asked me to forgive him multiple times and said he will do anything to fix it. I asked him to explain all the other women, and he broke down crying. He told me he cheated in high school, and cheated on his ex fiancé. He said he has cheated in every relationship he’s ever had. He said he never felt good enough so he needed to go outside the relationship to feel important. <br><br>I don’t even know what to do. I don’t know if I should even be with him. I feel so disgusted by him. How do I even confront him? I just need some advice.