<human>: The first instance was on New Years Eve, where I accidentally found out that he was heavily "flirting" with one of his friends. After confronting him, and having him promise me it wouldn't happen again, I was able to forgive him and try to rebuild the trust we had prior. 

On Friday (Jan 31st), I purposely went through his phone. I'm not sure why exactly I felt the urge to, but I found very sexually explicit text messages between him and his ex-girlfriend. Confronted him again, said he was sorry and that he was done doing stuff like this. Then, the next morning, I wake up to him giving a show, so to speak, on cam with his ex-girlfriend. I kept quiet, watched everything, and let him finish. When I confronted him yet again, he came up with some lie and told him to just tell me the truth. 

I feel so anxious all the time, and I can't get the image of him doing what he did out of my head. I love this man more than anything, and this is the only problem we've had during the duration of our relationship. I just don't know if giving him another chance shows him that he can just keep doing this, or if this REALLY isn't going to happen again.

Give me a shortened version of the text
<bot>: How do I manage to get through this with him, without feeling the constant anxiety of if he's being unfaithful or not?