>>6952266Cheating is a serious problem, and definitely not something you should just try to forget about. Even moreso if her response when confronted about it is to attempt suicide. Cheating is rarely a one-time thing--if a person will do it once, they're likely to do it again. Staying with someone after that is essentially just telling them that it's not a problem, and they can do it as much as they like, as long as you don't find out (and if you do, just cry and look distraught about it).
Keep in mind I'm just some anonymous guy on the internet, so take this with a grain of salt, but it sounds to me like she has some much deeper-rooted issues here. I'm not saying you need to call it quits for good, but I do think you need to have a serious talk about why this sort of thing happens and whether you're okay with having someone like that in your life.
Here's one of my favorites. Space has fascinated me my whole life, and I love pictures of radio telescopes in particular because of the imagery of these massive arrays moving in unison, dedicated purely to finding out more about the universe.