He wants his first trip to be with his son. So you go solo or with a friend. "Just not for this trip". Why not? If bio mom is like what you say, why won't she do that a year or two from now? Something isn't adding up. There it is ^. Right there. You want to exclude your stepson and are using bio mom as an excuse. At least, that's how it reads. You are perfectly entitled to want to go to WDW solo or with a friend. DH wants to include his son (who he hardly has custody of and probably misses being more active in his life). Please do not force your DH to exclude his son. You want to go on an adults only trip, fine. But please realize that when you chose to marry a man who has a son, your family got bigger and "adult only" things may take a backseat while your DH raises his child.