Girlfriend 's best friend is a guy, how to deal with my jealously?

My girl friend 's best friend is a guy, and sometimes I get jelous, what should I do?

Why would you be jealous, you already have her.

U met her while this guy was her best friend. you dated her knowing he was a part of her life. Now shes your girlfriend and still has the same best friend...doesnt that speak for something?? lol come on..its cool. Dont be jealous and/or act crazy cause you will end up losing her. Then u'll regret it. The relationship between best friends and boyfriends are very different. If shes not disrespecting your relationship or putting you last and your not really having problems because of the best friend...then theres nothing to worry about!!