Should I look? Or should I not...

My so has cheated on me in the past. I have forgiven him and moved on.

But now he's acting strange again. Getting angry for no reason. Overly stressed. Won't talk to me abojt it. Same behavior pattern as last time he cheated.

The thought of looking through his phone makes me physically ill, but thatshow I found out last time.

shouod I look? Or just let it be?

STDs are a huge reason as to why I would want to....