Lior, what do “vain” and “vanity” mean to you?
You appear to be using them (here and >here<) as though they refer to ???, which is one of their two meanings, but in a context where you’re obviously talking about someone’s looks, this can be confusing, given that their other meaning is “excessive pride in or admiration of one’s own appearance or achievements.”
Did you mean, in both places, that the boy is concerned
with ????? ?? ???, namely, the girl’s looks?