Nudes??

Okay so I have a friend and we are like really close friends and I love him to death. And this one random day we were talking and he ask for nudes and I was like "no" and he got mad and was like okay then " f you" and didn't talk to me after that. And he was my good and only true friend I had and that I can trust. So should I just send him nudes( I'm scared to)  or just not talk to him (which is really hard)?