I don’t want my husband going on a guys trip out the country

He cheated on me 6months ago and I decided to forgive him. He insisted going to therapy for the incident and followed through. Though this happened in the past I still feel as though it’s a little fresh for my trust. He was invited to go to a Colombia with a group of guys (4 married 2 single). At first I was okay with it then a lot of thoughts began to flood my mind revolved around him cheating on me.

This makes me think of separating just because how these thoughts make me feel and I don’t want to stop someone from traveling and I don’t want to feel this way anytime he wants to go on a trip with his friends. I didnt feel this way prior to the trip and actually felt my trust was building again.

Idk what to do but it’s been keeping me up at night.