DH and I are arguing about whose parents to eat with on Christmas day. My parents always ask in advance and want us to spend the meal with them, and we stop by go see DH's and exchange gifts etc. (They live close by). In over ten years together, there have been number of occasions where his parents don't make contact for months with us and focus on his siblings and don't even mention seeing us on the day, much less invite us to eat. This year, after I told my DM we'd be coming (hadn't had another offer, apart from spending it just the two of us, so thought DH would agree) MIL had mentioned that her other (adult) kids are spending Christmas with their own in laws and we are welcome. DH thinks that after years of awkwardness and feeling unwelcome, we ought to go. He is now saying the invitation has always been open and there are no set plans, despite being upset in previous years to be ignored - even to the point of seeing them, being sent away as dinner was served and sulking at my DPs' house. Am I unreasonable for not wanting to take this great opportunity that has been offered for the first time and 'solve' the issues that are clearly there? Or would it be more unreasonable to do what DH wants and upset my DM who has always included us and tell her I'd essentially rather be with the in laws who mostly ignore us?