Okay....now that I said all THAT above
I do want to say GOOD LUCK and congratulations.....
maybe you could gently remind your mom that this is YOUR day - a wedding is ALL ABOUT The Bride and Groom... and not a day for personal differences - ... she can set her feelings aside for this occasion. Your wedding day is not called MOTHERS DAY -
it's YOUR Special Day and she should want to share it with you.
I wouldn't have missed my sons wedding for all the money in the world....Your mom will regret her decision if she doesnt attend.