Step son and vacation issues

Me and my husband take the kids on vacation every summer. We usually pay for our excursions on board the cruise. My entire summer got blown up because the day before summer my husband had to go fly out to Texas to pick up my step son from his mom and he was granted emergency custody. Our daughter graduated from kindergarten and he had to miss it.

My step son just turned 14 and I have tried to build a relationship with him in the past but because his mom hated me he didn't really like me either. So anytime he was here I was ignored. He would only speak to his dad. We got emergency custody because his mom's father was abusing him physically, emotionally, and sexually, and his mom knew. And thats horrible. I completely understand why he's here and I support my husband putting him in therapy.

It's just been a hard summer. The kids haven't really gotten to spend much time with their dad because he's been fighting going to court for permanent custody. Court against his ex's father. And therapy for step son. I have been supportive but I've missed my husband and the kids have missed their dad.

Like I said we go on a cruise vacation every summer and the kids are excited but the issue is we now have to add my step son to the cruise my husband said we really are not going to have money to do excursions. We always do at least ONE excursion on a cruise.

I know everyone is thinking this is the most first world problem but my kids have been sacrificing a lot this summer. Everything has been around their half brother. And something they look forward to every year they won't even be able to enjoy to the full extent. I don't even think my step son will enjoy a cruise because of everything he has going on but my husband has no other family that will keep him and he doesn't feel comfortable leaving him.

I'm not trying to sound heartless. I have been supportive this whole time. I just want my kids to also feel cared for.

Edit: I understand my post cost a lot of big feelings and just like you're allowed to have big feelings about a stranger you do not know, I am allowed to have big feelings about things that are important to me and my kids. Doesn't make any of us wrong ❤️. Also to clear up why he wasn't included in vacations in the past. We take cruises and cruises go out of the country. If both parents are not present there is a paper that has to be signed by the other parent stating they can go. She would never sign it. Since my husband has custody and with everything going on he was allowed to get that overruled by judge so he can go.