Re: how to talk to husband
I wonder if the way you have expressed this reflects his way of thinking:
staying with family = staying in one place, responsibilities, obligation, work
travel alone = enjoyment and fun
You two have to redefine what you’re life and time together is about. Of course husbands/wives/parents have obligations and responsibilities. But sometimes we forget that there should be more to the relationship. He should WANT to be with you, as you should with him. A little time apart is great, but just traveling alone for long periods of time without a specific reason just doesn’t make sense to me. He seems to be putting you and his family life in a box and not acknowledging the potential fun and enjoyment in his time with you all. Also he may feel like he is only husband/father and forgets that he can be himself with you, as more than just husband/father, just as you can be more than just wife/mother. It’s important to cultivate and share your whole self.
Also, a 2.5yo won’t remember these vacations most likely, but he will enjoy exploring and sharing new experiences with his parents. These will build a strong foundation for him in life and in his relationship with you two.