for me; once he's gone he's gone. he can do what he wants & it will never dampen my memories of what he has done for us. this is extra true as he seems to want to stay but the club are forcing him out. it may be different if he agitated for a move...but that isn't why he is leaving.
anything he owed us as fans for supporting him, he has repaid ten-fold with what he has done on the pitch. good luck to him whatever he does...i hope he doesn't end up at utd, but if that is the best option available to him, i wouldn't blame him for taking it.