Sounds like you handled yourself with dignity through what must have been a very difficult fathers day. I know I had ahard time with mothers day and my W, putting a lot of thought an dlove into it getting little in return...I did stick to my DB pretty well as it sounds like you did as well.
I wouldn't make a deal about the tickets to the movie...it could only push him futher away. It is also very deniable, he could say he paid for the tickets because his male budy was short on cash etc....
It is painful, and I know it feels like a no win situation. The only weapon you have is to be a better you for you and your children. At the end of th day this will likely win out.
TwinDad Me 39, W 36, M 11 W - MLC, WAW???? 2 Kids B/G 3 YRS Old Start of the Long and Bumpy Road..... On the verge of piecing.....a new beginning