In that case, I dont know if you have to have her change anything about him. The rock star lifestyle will catch up to him real quick all on its own. She's immortal (ish) and has supernatural resistance to the Bad Stuff, but the PC does not. Frankly, that lifestyle will kill him pretty quickly if he doesnt get out relatively soon. She isnt trying to hurt him, she just doesnt really get that this stuff will kill him at the rate she goes.