Very rude and impolite

When we talked first time he was polite and understanding I explained my method of sending the goods he said its ok.
After waiting for him until the day for the trade, on the day of the trade he asked me again about the method of payment I explained again and he was not satisfied about it and instead of looking for another buyer he insulted me calling me a scammer and shadey with no reason. After I understood that he doesnt want to use my method of payment I tried to terminate the conv and trade but he started insulting me even more.
I would not trade with this person anymore and he is even a bit racist to.