Beyond irritated

My fiance and I are eloping in 22 days. We decided I would have my two best friends there as witnesses. We decided to elope because there was so much animosity between my mother and stepmother and different families putting in their two cents of what my wedding should be like that it was stressing me out. My mom tells me that she is going to crash my elopement and I told her no. She said "you're father doesn't have to know". My relationship with my dad has always been rocky but I think we are finally on the mends and I don't want to do anything to screw that up like having my mom at my wedding and not my dad. When I told her this she made me feel guilty and was like "fine I'll just stay home". it's so frustrating because she just can't respect my wishes. It's not that I don't want her there, I just don't want to hurt anyone like my dad and stepmom by not inviting them. She says she's gonna be there whether I like it or not. Now I'm not even looking forward to my own wedding. 😢