I think it's a wonderful idea to do something different this holiday season. It's time to create some new traditions that you and your family can enjoy.
As for the prom dress, if your h has offered to go halves w/you, then accept the offer graciously. I'm proud of your D in asking her father about chipping in. Why shouldn't he go in w/you on the dress? It's his daughter too and the prom is a very special event that only comes around once a year. Don't allow your pride to get in the way...accept his offer and be sure to thank him when he either hands you cash or writes a check for his portion of the bill.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
