My parents went through a super messy divorce about 2 years ago now and my mother is still holding a grudge, she thinks my dad cheated on her with his now girlfriend, who i have a good relationship with. (It's way more involved and deeper than that but this is the simple version) Now my wedding is quickly approaching and im finding that its more stressful because she doesn't want the gf to attend the bridal shower and insists that i have two because she wants no part of her being there and refuses to contribute if she is there. My dad's family is very small only his gf and 2 sisters so its clearly ridiculous to have another shower for 3 people! I feel like it would be childish to stoop to her level to not invite the gf who i like and want there but i'm sick of the arguing and drama and I feel if I cave on this she is going to push for more and more as time goes on. Please any advise on this situation!!! TIA