Don't believe ... he is a scammer
You must not have trusted a newbie guy. Escrow was must for this transaction. Why don't you tagged the user if he has scammed, although it's a proved scam.
How it is proved? I am not ever going to use telegram! It is a russian services where anyone can delete whatever evidence of a conversation. Join my discord channel and check it out! He came and said I am a scammer, I deleted not even a message. So who's a scammer?