Helen,
Corey would most likely listen to what you have to say about mending the friendship. If you aren’t comfortable calling him or trying to talk to him, perhaps you could take this initiative through a note or an e-mail message.
You need to do this to help yourself to know that you have done everything possible to repair the friendship. Everyone has a desire to be liked, and by making this gesture Corey will know that you still care and do not want to have this barrier caused by an argument.
Best wishes,
