I used to go bat shit crazy on my gf's male friends but wondered why it wasn't ok for me to have my home girls. I realized the problem was me. HA.
Now I could give a shit less who my wife's friends are male or female.
There are two types of guys when in the club with their girl:
a) try to fight every damn dude that looks at his girl
b) be proud of his girl and that everyone is staring at her
Answer B is the way to go. Until your girl fucks up.