Sweetie, first things first - you feel what you feel. There are no wrong feelings.
You had a long term marriage. It's not easy to get over that.
And having to deal with your idiot xh acting like a fool along with his lowlife ow sure doesnt help.
Here's the thing. The only way to do this is through it.
So, you need to find ways to change your mindset. However you need to.
Personally if I had to deal with their ridiculous displays, I would walk in there looking great, and just act like you know they're crazy. When people look at them, and then at you, shrug your shoulders as if you are saying, "I know, crazy right?"
You have absolutely nothing to be embarrassed about. That's the mindset you have to have at those games. They are the crazy ones. And trust me, people see it.
I am sorry that you have to deal with that and that your children do, also.
Remember they are looking to you to see how to deal with what life throws at them.
IB, your xh was doing some really terrible things. And sometimes when we look back, we tend to see with rose colored glasses. I think if you really look with honesty, there were some pretty bad spots in your marriage.
That said, only you can change how you feel. But dont put a timeline on it. Just get up each day and say to yourself, today I am going to try to have a good day. I am going to try to get one thing accomplished. I am going to live my life with dignity and confidence.
You may not make it everyday. But, that should always be the goal.
And when you are ready, you will begin to have those kinds of days.
You are more than the sum of your marriage, IB. That was a part of your life, not your whole life.
We, all of us, do not need another person to live. We may want them, but, we do not need them.
As far as your daughter and her marriage is concerned, that is her day to do as she likes. If her father chooses not to go, his loss all the way around.