Once a cheater always a cheater?

My husband cheated on me twice with the same woman within six months. The first time I caught them, I forgave him and we reconciled. But six months later, it happened again. The second time was worse—I was ready to let him go. We stayed apart for a while, but because of our kids, I couldn’t completely cut him off. After almost a month, we got back together. It was extremely difficult for me, but over time, the pain started to fade.

To his credit, he put in a lot of effort to win me back and make up for what he did. He hasn’t given me any reason to doubt him since—I have access to his social media, phone, and even Life360 to track his location. I also saw how deeply it affected him when he realized he was about to lose his family. He’s really trying.

The cheating happened almost two years ago, and we haven’t had any major issues since—except for my occasional triggers. Sometimes, I can’t help but bring up the past, but every time, he reassures me that it won’t happen again. He’s afraid of losing me and our kids.

But my problem now is that I feel like I’m just waiting for him to make the same mistake again. It’s as if I’m anticipating it, like it’s only a matter of time. I tell him about it, but he gets annoyed. Am I being unfair to him? Or is it just the reality that once a cheater, always a cheater—and I’m just waiting for history to repeat itself?