Not sure how to feel

So my boyfriend and I have been together and lived together almost 6 years now. I have a child from a previous relationship and we have a daughter together, even tho we aren’t married I consider myself part of his family and his parents treat me like their own. Well his cousin is getting married in July and their wedding will be in a different province. They’re having a smaller wedding because of Covid. My boyfriend was talking about how he was hoping to share a hotel with his parents or go up with his brother and his brothers wife and join their road trip they plan on doing after the wedding. I asked him if the kids and I were invited and he just said “well your names aren’t on the invitation so I’m going going to go solo”. Are we not considered family? I’m not even sure if we in fact weren’t invited or if he’s just assuming things without asking first. My feelings are really hurt, So now while he’s getting to have a little holiday I’m stuck at home by myself with the kids for a week.