Being that brakes cause friction normally for vichels I'm not entirely sure what you're asking. Though if you are referring to "Break up." There isn't any break up spell!, or brake up spell as you put it. If you are trying to break up with someone simply tell that person to their face, or text, email, phone, or whatever people in your generation does. It may be very diffcult to do but remember this quote "Things only get as bad as you're willing to let them."
The best thing to do is put your big-boy shoes on and break up in person..
If it is dangerous, break up over the phone and make sure you are in a secure location with people around you.
Spells can't be used for everything, sometimes you have to walk reality.