Jealous boyfriend.

I love my boyfriend but his jealousy is out of hand. We fight constantly about my best friend. We been friends for about10 years and his a guy. My boyfriend and i been friends for 3 years we been dating for 6 month. I haven't talked to my friend in a few months but every time i do. My boyfriend and i would fight about it he doesn't want to keep contact with him. It feel like Im stick between losing my best friend or my boyfriend. 😔