New information from the past about my wife, should I just forgot about it?

I’ve been married to my wife for about a year now, together for 6 years since Feb 2019.

Originally we started as an LDR, before meeting in person in another European country. We started to chat in September 2018 but didn’t officially become a couple until Feb 2019 when we first met.

Recently I found out that in December 2018-Jan 2019, she was going on dates with a local guy (she was a foreigner there too, and left that country in September 2019). The relationship with him was sexual too. At the same time over chat we were talking about a future together, planning a meet, and she was telling me she loves me at the same time. We were video calling, and I was enjoying every moment of getting to know her.

Later in mid-Jan 2019, the man said he wasn’t interested in her anymore, but clearly she intended to commit to him rather than me. She told her sister over FB chat that she fell for him hard, and he is the one she really wants (back in early Feb 2019 before we met in person).

Before we met in person, I booked my flights and sent her a photo of my tickets, of course very excited and thought she was too as she said she loved me, was excited and lots of heart emojis etc. But she sent a message to her sister the same day with the crying emoji, saying the other guy is who she really wants and she doesn’t like me much. Her sister said to not compare and to give me a chance.

After we met, she sent another message to her sister saying although I’m not handsome, I have future plans and am sweet/kind and wants to see me again.

From there it’s been as I’ve known it - a great relationship where over the past 6 years we’ve built a great life together, have a daughter and she clearly is fully committed to me.

I’m not sure how to feel, as we weren’t in a relationship at the time. But I did feel we were exclusive - at least I was. What should i do here? Just leave it in the past and forget? But at the same time I want to talk to her about it.

I know all this, because she asked me to find a photo of a document her sister sent her. While scrolling back through photos I came across one of her and that guy hugging with morning hair, sent to her sister saying ‘I want to show you something’. From there I just had to see what it was about as I was genuinely really confused (but of course I guess I invaded her privacy there). Seems like they were dating for a month from mid-Dec 2018 to mid-Jan 2019.