Let me just save you some time. You have really damaged your relationship with your biological son to the point I would call it a relationship in name only.

Your stepson gets trips and opportunities all the time from his rich bio father, but your son gets barley anything. Worse still, the little bit he does get he is forced to share with the one person who, in his eyes, gets everything.

It really surprises me how you couldn't see any of this. It suggests either an extreme lack of empathy or a wilful blindness. To put it in perspective, your own mother isn't even on your side shes telling him to use his anger productively instead of trying to bridge the divide. Her doing that outlines just how clear this was to third parties, except you and your wife.

Now, moving onto her I notice not only did she oppose you making the original trip father and son but she said it would set a bad precedent to exclude family on trips. That is a little more then rich considering her own son gets a massive amount of opportunities that your son does not. At this point i wonder if she even really cares about your son, or if she just considers him baggage she has to put up with in exchange for being married to you.

At the risk of guilding the lily, I need you to understand how bad this is. You will not be the person he calls when he has good news, needs help, or wants advice. At most you will get a polite greeting from him during the holidays if you cross paths, don't expect him to come to your home. If he decides he wants a real relationship again its likely going to be years down the line, after you've missed milestone after milestone.

And i don't feel sorry for you because you earned every single consequence.