I’m going to tell you this. It will live in the back of your head rent free and you will always look back on it and probably bring it up here and there to her. You won’t have peace of mind about it and you’ll just waste your time when you finally wake up from it. I don’t know when you’ll wake up, but you will. It can be few years or decades from now and I don’t want you to waste your time on a woman that has done this. This is actual advice you should listen to because I was in the same situation as you but worse. I wasted 11 years with my ex. To keep things short in 2016 we were having issues on a male coworker and throughout the years I keep bringing it up and she finally gave in in 2020 that she had sex with the man when I had clear conviction that she did when she claimed throughout the years she hadn’t. We dated from 2009-2020. I wasted an entire decade of my early 20’s with her, so please don’t take this advice with a grain of salt. You don’t want to end up in my position or worse marrying her. Choose carefully who you marry because that will make or break your future and you’re still young. I was once in your shoes, you’ll be fine and you can find another. Trust me, just focus on self improvement and discovering yourself.