Hi DouceLyli
Welcome to forum.
I'm sorry to her you have had a bad experience in this game.
There are also good people here.
You do no not have to leave the game because of this persons bad behaviour.
There are things you can do.
First put the player on ignore. You will be able to see him but not hear him.
If he stands in your way in public rooms, take a pic and report him. Achat will ban for that intimidating behaviour.
Then complain about all his behaviour to Achat through Support. Support is on the menu bar at the top of this page.
Provide a copy of your chat log and any screen shots to prove what he has done to you.
Good luck to you and I hope you stay and enjoy the game and forum.