Quitting?

I’ve done cheer for many years because my mom has made me. I just don’t enjoy the sport anymore and have tried to talk to her about me quitting. She doesn’t want to budge and tells me I would be a disappointment to her if I quit. She thinks I’m quitting to spend more time with my boyfriend but I throughly just do not enjoy the sport anymore and have had enough of it. She told me that if I quit I would have to break up with him. What should I do? I don’t want to keep torturing myself with something I hate but I love my boy.