Why a guy would ask me, an ex lover for nudes, while he just got a baby and says he is very happy with the family he created?

We had a thing and such a connection, but he lives in Australia and me in Europe. 4 years ago he told me he met someone, since then they probably got married and he got a kid.
I tried to do my life as well, but since last year, he keeps hitting on me but mostly for nudes and says I am the only turning him on like that.
It is super confusing…

Why a guy would ask me, an ex lover for nudes, while he just got a baby and says he is very happy with the family he created?
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