I'm a little hurt that my husband said that our trip is cancelled
That's saddening. Why do you think he's cancelling your trip?
I feel like he wants to just stay home all the time but I really want to go. It would have been nice if we could enjoy a trip together.
Wanting to spend time out with your spouse is very normal. It's good that you invited him even though he usually just wants to stay at home. Keep trying and maybe he'll cave and go with you in the future.
I'm not so sure if I'll be able to convince him to go or not. I think he's starting to lose interest in me.
Well, I feel like your issues are way bigger than just this trip that you are talking about, where you may have a marriage problem. Do you have a councilor that you can talk to or a family member that can guide you how to navigate through your relationship with your husband? I would suggest that you do that.