Am I wrong ?

I wanted to do something special for my partner for Father’s Day as last year I had just given birth and couldn’t do much, so last year my MIL sent her husband to stay with us for Father’s Day then this year which now I can actually do something as a family she booked a flight for her husband to spend Father’s Day again without asking me if I was planning anything. When I told my partner that I wanted to start a new tradition as new parents. I didn’t make a big deal I just made a comment that maybe next year we could do something. He brought it up to his mom and she went off on him which made my partner go off on me. We got into a HUGE fight and she canceled the flight. He said I’m succeeding in keeping his family away which has never been the case, I told him I don’t mind if he comes at all maybe the weekend prior or the weekend after just so we can start new traditions.