Is it normal my bf falls asleep listening to asian girls eat?

My boyfriend listens to and watches videos of these Asian girls eating and falls asleep to them? He always sleeps with his earbuds in cause he has insomnia and listens to like white noise or just random sounds to relax. And when I looked through his phone while he was sleeping his playlist was just these weird maybe-erotic videos of Asian girls eating strawberries or kale chips or kissing the camera for like two hours straight. It's so weird and kinda uncomforting? Or it's like an up close video of a girl eating like a massive massive meal. The sounds drive me insane but they help him sleep or study apparently.

It's always Asian girls, and they're always wearing skimpy little outfits with their tits and ass out and they're really skinny but eat massive meals for two hours. It's so weird, he says it's relaxing, I think it's some kind of fetish.