Thanks for your reply j92cool.
The only family that will be there is myself, ExH (+OW), my other two children and son's girlfriends sister and step dad. ExH's family have nothing to do with my kids since separation and while we can't ask my mum to go as she will make a scene and she and I don't get on (confused yet lol?).
Other guests will be son and girlfriends friends and some of her family.
If I thought OW was going to be talk of town by her presence I would have let things be. My problem is I am still very emotional about things and hurt, she is 10yrs younger than me, and very attractive, nice figure etc, which doesn't help my self esteem, as I am a bit overweight and not very confiident. I don't know maybe I should pay an excort service and find a nice toyboy to walk in with maybe I could pay him extra to hit on OW.
ExH and OW have started giving kids heaps of money for Christmas and Birthdays I feel like I am slowly losing them to ExH and OW what with their money big house and swimming pool, I just can't compete, all I have to give them is love and support, except in this case because I can't support my son's decision to invite OW to his Wedding.
Losing my kids and granddaughters would destroy me.