I know I just need to let this man go but he feels like we can fix it but I know with my trust issues that I told him about , how could it?

So I think my boyfriend purposely does things. So today he tells me he is getting a massage for this girl Alicia that he has known for a year and he just met the boyfriend for the first time in a year. So he tells me today he plans on getting a massage from 10am-12pm. He goes you are welcomed to come see what the massage looks like. I think because if I told yes , he would think I was insecure and crazy right you guys?
I know I just need to let this man go but he feels like we can fix it but I know with my trust issues that I told him about , how could it?
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