Willow breaks down

After trying to hold herself and her friends together the whole episode, Willow starts to crack under the pressure. Her powers spiral out of control, and she winds up ensnaring herself, Gus, and Hunter in a thick tangle of vines that grow faster every time she tries to stop them. Hunter manages to free her and tell her she and Gus mean the world to him, and Gus tells her it's okay to rely on someone else for a while - at which point Willow immediately starts crying out for her fathers.

Example of:
Power Incontinence