She wants to break up with you
It depends on what you mean by "break."
To break ground rules
To break or to violate.
Nothing......
Fracture.
break
A break in the action is a pause. A break in the action is a temporary suspension of activity. Activity stops temporarily.
It's not an idiom. To break camp means to break it up, to pack your things and leave the area. It can be used as slang, however, to mean a group "packing up" and leaving.
disconnect
Break Horse Power
to break it in half