He isn’t banned, he blocked you, probably because you seem desperate to continue an RP session of which he has lost interest in, so just drop it and move on. Don’t talk to him, don’t talk about him.
I’m going to take a wild guess and assume it’s frowned upon in RP communities to share information about private RP sessions, so maybe don’t do that, alright?
Don’t be a douchebag just because you’re upset that someone doesn’t want to RP with you anymore, that’s a big red flag for anyone who RPs with you in the future.