Boyfriend cheated

I’m going to make a really long story, short and simplified.

I found out I was pregnant and my boyfriend was thrilled. We planned it. He cried, I cried, we hugged, and talked all night about it.

Well, fast forward to two days later, I had to leave town for a week for family. So I come back and about a month later I find out that my boyfriend cheated on me FOUR DAYS after finding out I was pregnant.

He went to a party with a girl who is known for sleeping with men who are taken. (Two other married guys, as i know of) he got really drunk and they ended up sleeping together. He woke up at 2 am and felt horrible so he grabbed his things and left.

I found out because I saw text messages from her (ALOT) asking why he wouldn’t reply and asking if he was okay. I guess he didn’t respond to her after that night.

He was very honest with me and told me every.. horrible.. detail. It was hard, for both of us.

Fast forward again, it’s now been a little over a year since he did it. But as you can imagine I didn’t enjoy my pregnancy because I was so angry and hurt.

But our baby is almost a year and everything is fine.

He hasn’t ever done anything wrong since the incident and he always goes out of his way to make sure I know that I’m loved and honestly, my trust issues aren’t bad. I don’t look through his phone and I don’t go crazy like most woman do.

But I guess my question is am I stupid or naive? Do you ladies think that men can actually make an honest mistake?

I know he loves me, he shows it all the time. He’s a wonderful dad too.

But I guess deep down I always wonder just a little bit. Thoughts?

LET ME ADD: our relationship isn’t toxic nor unhealthy. It’s full of love, communication, and friendship.