There wasn't a single question in this thread.
You identified that the pulley is breaking. Replace it. But the tensioner for the belt that goes on the power steering pump is the alternator assembly, it moves up and down to tension the belt. The belt tensioner that is just an idler pulley is for the AC unit.
Also, if you see the line, and you see where it is leaking then just fix it. New hose clamps or a new line.
What's the question here?