You are breaking up with her because she lacks something you want. Start demanding that she becomes the woman you DO want:
Call her at two in the morning and tell her to immediately come to your house wearing only a trenchcoat and garters.
Tell her she needs to have all your laundry done by 4:00 pm the next day. And not too heavy on the starch!
Tell her you want her to find a female friend to join you for a threesome.
Go to dinner where YOU want to eat. Do things YOU want to do.
You get the picture...
One of two things will happen:
1) She'll tell you to go to hell, and you're off the hook for breaking up
or
2) She'll accept your terms and you'll be happy, for a while at least.
I know, eventually, you may grow tired of toying with her and might have to break up, but, then, option "D" will work fine.
Have some fun first!