I think I just need to put my feelings aside and be there for my kids! Maybe that's the best approach.
dusty70,
I'm the last person who should be giving you advice about your particular situation, but...if you are close to your XW's family, maybe it would be a good idea to discuss it with them.
Having said that, I know what I'd do; I'd go to the funeral and stir up trouble and and all of my bad behavior would just confirm everything the naysayers said about me. Don't do that. If you don't think you can keep yourself under control, then don't go; just send your kids and your condolences.