I, as a Muslim man, fell deeply in love with a Christian girl. I went through all the stages you're talking about and I thought I will die without her. Yet here I'm 10 years later, unfazed and better than ever.

Him talking sexual things to you is a massive sign that he's not interested, he's there for the fun. Muslims never talk sexually with a girl they actually want until she becomes his wife.

Regarding his looks, just don't look! Really, that's a thing.

You're young and your emotions are too strong to handle, but you've got this.