DH and I are quite friendly with a colleague of mine and her DH and do a few things socially with them. Anyway a little while ago we had arranged to go out for a meal with them next Saturday. DH told me a couple of weeks ago that we had been invited to a small gathering by some people he knows through his hobby for next Sunday. I've never met any of these people before and said that I was looking forward to going and meeting people from his hobby. Anyway, he went to do his hobby today and came home and said that he had confused his days and actually this gathering is on Saturday. I replied that we couldn't do Saturday as we already had plans. He then said that as we see this couple quite regularly we should rearrange with them and go to his hobby gathering. I've said no you'll have to explain that you've misunderstood when this gathering is and unfortunately we have a prior engagement. He went ballistic and said that he understands cancelling will be awkward but that I should be putting him first. I've asked him why he thinks it's ok to put me in the position of feeling awkward because of a mistake he's made.
Anyway, he's announced that he'll be going to the gathering so I have contacted my friend to say that he won't be joining us but I'd still love to join her and her DH for a meal if they are happy to see me on my own. They are more than happy to do so. I consider the matter settled now but DH is fuming. Apparently, I am selfish, childish and a people pleaser who should be putting her husband first.