"W, we will not be going on the trip because you are seeing OM and want to leave the marriage. If this is the case, I need to protect us financially, and going on a trip to Hawaii is not possible. I haven't said anything yet because I was hoping you would tell me that you want to work on the marriage and stop all contact with OM."
Why are you making up stories, stalling, etc.? I think I'm still lost.