Long story but the context is needed, I’m in an incredible relationship with a girl for about the last 3 months.

Early on in our relationship we hung out a few times and went to dinner, had some drinks with no physical intimacy, it was pretty much just as friends. A month or so went by due to travel schedules and such. We then met up, had dinner and a great time, hung out 2 more times that same week and kissed at the end of both of those dates with plans to see each other and spend the weekend together a couple of weeks later.

I did know she was dating around at the time, I found out a months later that she said she ended it with the other guy after these two dates. We became official about a month later.

I recently found out that when she broke things off with the guy, it was the Monday after I left after those two dates. She invited him over to her place with intent to break up but ended up sleeping with him one last time. She told her friend “I really hate myself sometimes, I invited this guy over to break up and now he’s passed out in my bed”

She ended it with him over text the next day after talking through her feelings with her friend.

We’ve since had a great relationship, and I know she’s been loyal to me, but I just can’t stop thinking about how she was into me, but still slept with this guy one last time. Should I bring it up to her and hear her side of the story or let it go?