<human>: I know he cheated with an old friend a couple of times early on in our relationship. It was before I met his parents and he would go to visit on his own. They hooked up a couple of times. I know this 100%, but he denies it to this day.

Recently, I saw some texts on his phone indicating he and a co-worker are up to something. They have feelings for each other, but would never date. They have hooked up in the past. About the same time as the texts, his total demeanor changed. He became withdrawn from me for several weeks and just wasn't himself. He admitted something was bothering him, but said he didn't want to talk about it. I flat out asked him if something was going on between them. He said no. Ever since, his phone gets wiped on a regular basis.

I just wish he would admit to one or both so we can work through things and move on. Right now, I am always paranoid. I don't go on weekend trips with the girls or even out to dinner with a friend because I am afraid if I don't keep a constant eye on him he is going to do something. It is so hard to live this way, and I can't always be here. Lately he is encouraging me to go on some of these trips/dinners, which he never used to do.

We have been together for 8 years and living together for 7. Outside of the cheating (and lying about it) he is a wonderful guy and I love him very much. I feel like I could start to heal if he would at least admit to it...either stay and fix things or leave and move on.

Help.

Can you give me the gist of the text in a nutshell?
<bot>: He won't admit to cheating I know he did, and I am having a hard time trusting him. I am missing out on life because I don't want to leave him alone with time to cheat again.