Ouch, that hurts I am really sorry to hear that you had to go throught that. My mom is not coming to my weddding too. But don't get upset, as long as your FI is there it's all what it matters. I will be taking my mom out with some other friends to Chateau Laurier for dinner, so at least she would have some kind of celebration. Maybe you can do something like that too, so she won't feel completely unincluded. I know you are probably upset and don't want to think about it, but she is your only mother and I am sure she had some serious reasons to not to come to your wedding.