I see all the retro stuff but I honestly would tell your husband that you decided to cancel it for another time when you both were more open to the idea. I just can't see how continuing to push this weekend on him is helpful. He doesen't want to go and accuses you of being controlling. I would let it go for now and just tell him that you are canceling it. IF HE REALLY WANTS TO GO then he will speak up before you make the phone call to actually cancel.
Me: 28 H: 32 1st marriage 4 both 1 1/2 year married 2gether for 9 1S: 6months 1stepson: 2yo