Why does he sent me p*rn links?

We dated, we met but only had sex. Since 3 weeks he don't answer mails but send me today again a link to a site... why? Without any single word. What does he mean? He never did this since we met and we never talked about p*rn. I never reacted. I wrote a mail last week but he never answered. In the beginning we wrote more mails. I am confused.
Updates
6 mo
He was very charming and this is definitely not his style. I don't know maybe his phone was hacked. Useless to write so I will wait. And hope.
Why does he sent me p*rn links?
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