Not quite sexual guy, I guess..

[Cuddly]

I don't consider my body to be beautiful and I don't know what could he possibly like about

Yes, I can grow beard and mustache easily. They grow annoyingly fast. I think I've normal height for my age - 178 cm.

Don't be silly, you're hot. Atleast to your boyfriend and his opinion is the one that matters.

It doesn't sound like testosterone deficiency then. Consider seeing a doctor - it might be nothing, but I'd say it's uncommon.

Aren't you attracted to your boyfriend? Don't you feel the desire to put your hands on him? Or your lips? Asexuality exists too.