How about not giving a fuck?
You're not obliged to listen to silly ukulele songs you think are shit, just as much as she's not obliged to only put out dark angsty oh-god-I-hate-myself piano songs to please you.
There's lots of records by bands I love that are pure and utter shite, some of which I've bought at full price not realising that they were going to be bad. You know what I do? I don't listen to them, and I don't going around talking about how bad I think they are. I listen to the ones I like, and I find other bands to listen to.