On the piano, can you move it into the garage (if you have one) so she can pick it up up whenever she wants? That's what I did with my W's stuff. OM was helping her move and I didn't really want him in the house, so I put the stuff in the garage. If it were me I wouldn't particularly want to be there when they're moving it out.
Great work on losing that weight! I'm actually on the opposite track, I'm on a bulk phase right now so my progress is measured by how much weight I gain Not as easy as it sounds though, because I'm doing a clean bulk which is a lot harder than a dirty bulk (IE, pizza, ice cream, etc.)