Reported flags for this user for violating the rules.

Had a trade set up with him, he accepted my friend request in game, never responded to my initial message about setting up the trade. Then I sent him a message this morning about our trade being ready and I put his name on my monster. I just went to set up the trade and he unfriended me and muted me without reason. 

this guy remove me from your friends list before trade and now does not accept my application.

He posted a pisces flyfox with snipe and champion as its abilities. When he sent the trade proposal it had a pisces flyfox with snipe and bruiser for its abilities. I contacted him and told him I had to reject his proposal because it was not the mob we agreed on.  I tried to set up a trade proposal myself but the mob he had posted wasn't in his inventory. I contacted him and told him he needed to make sure the mob wasn't on a team or was wearing any weapons or armor and then we could trade. He said he didn't have any other pisces flyfoxes. When I tried to clarify, just in case he didn't understand what a "T3" and "T2" were, he proceeded to ignore me. I waited longer and tried again, but figured it would be silly to show a screenshot with me saying "hello?" and "you there?" repeatedly over the course of time.

TLDR: He posted something he didn't have and then ignored me..

just ignore me. I want very long,   but  he dont answered me.

He concluded the exchange with me, and after 12 days does not respond to treatment in facebook and in the game. Also it does not have a monster, whom he was going to share. Also he blocked me in the game.