You may begin to form friendships with them as well. While its totally acceptable — even natural — to feel a bit insecure, she wants a guy who is cool with her having male friends because he knows how much she cares about him.
Is it OK for your girlfriend to have a guy best friend?
If you know, without a doubt, that your girlfriend is a woman of good character who is loyal and respects the relationship that you two have built, then no, there is no cause for worry. Its completely normal, and healthy, for both of you to have friendships – both male and female – outside of the relationship.
Is it bad to have guy friends while in a relationship?
It is absolutely okay to have guy friends. Basically, dont do anything you wouldnt like your SO doing. If you usually hug your guy friends and hang out alone with them and feel comfortable, then continue to do so! Its healthy to keep platonic relationships with the opposite sex (assume youre straight).