<human>: Can you give me the gist of the text in a nutshell?

I don't know how to confront my boyfriend of 2 years on a message I found. I was snooping, yes I know I was wrong, I shouldn't have done it and I feel extremely guilty about it. The message said:

"I said fuck [102112] and went to the concert and had a bitch to accompany me as always"

Part of me wants to believe he just said this to boast and seem cool to this friend of his because this friend is kind of a douche bag and is a bad influence and caused him a lot of hell last year during his freshman year

The other part of me thinks he cheated.
I want to confront him to get the truth but right now he thinks everything is ok and I know if I do it will cause a huge fight, he will blame me and break up with me. I don't want to fight, and I don't want him to break up with me. I want to move on from this and figure out why this happened and I want to know if he cheated or not.

Last night I saw him and we talked a lot about the cheating thing and how it real scares me and how I am insecure. He told me he loves me and would never cheat on me. He says he is just attracted to me and wants to be in a committed relationship with me. I want to believe this but I am still stuck on the message I found. I have no idea what to do, I am completely heartbroken.
<bot>: I snooped, boyfriend possibly cheated, I want the truth but am to scared to confront him. What do I do?