I always encourage my wife to watch the most mundane looking show on her watch list. When she inevitably falls asleep, I slip out to the next room and play guitar instead.
@fesshole another case of men not talking to their partners here. You could alternatively say “watch what you like, I’m going to go play guitar for a bit”.
@fesshole Why not try saying 'I want to practice my guitar'? Maybe she would like to hang out with you while you play.