Using the current Blender version, 2.8 RC2. This setup was according to another posting I followed to learn how to create curtains and get a pulled back/curtain ring effect.
For the most part it works as designed; however instead of just cinching the curtains, the torus attracts them. Eventually the curtains get all wrapped around the thing. Magnetic forces are not turned on for anything.
I can't find anything else that would cause one object to be pulled in to the other. A little help please.
Original post, with Blender file I downloaded, is here: