So this past Saturday, my girlfriend and I had plans to go on a walk down by the river in the afternoon. I was working Saturday morning and I was running behind schedule. She got upset that we were running short of time for the walk. She calls me a tells me that she totally forgot she had dinner plans with a few of her girlfriends at 8 pm. Then she called and dinner was pushed back to 6 pm, so we couldnt do anything. I said OK, have fun. She texted me at 6:22 and said that they are done with dinner and she wanted to go out. She got to my house, and I asked her how dinner was and apparently only 1 of the 5 girls showed up and they didnt eat they just drank a few cocktails.
We went out and had fun that night, the next morning she was in the shower and I looked at her text messages, (She got two texts in a row). I noticed a name that I didnt recognize and I looked in the text. There were texts stating what time they were going to meet, should they pick her up and other discrete texts, like "I Miss you" "You know how I feel about you" etc. I could tell it was a guy and I wasnt able to read the whole conversation and I could hear her coming back into the room.
I started getting real quiet and she asked what was wrong, I said nothing is wrong and then she asked if I had went through her phone and said no. We went on a walk and she kept asking me what was wrong and I shook it off. On Monday, I did some digging about the name, and it turns out the name matches a professional hockey player in my hometown. She dated a hockey player a few years ago, and they broke it off. He was traded to a Canadian team this past year and it just so happens that this team was playing my team this weekend and he was in town. I also can say that I recognized his photo from some of the pictures she has of him without his shirt off, saved in her phone.
I didnt sleep at all last night cause this was on my mind and I dont want to make a big deal about it, but I feel like I shouldnt be lied too.
What should I do?