If your boyfriend's friends are actively trying to sabotage your relationship, you have a right to be upset. But if they're just lusty dumb single guys who want their.
Some of my closest friends are ex-boyfriends. My husband is cool with that because he trusts me. I have, however, encountered the odd jealous girlfriend or two.
The break-up was caused by a phone call from my best friend who admitted that she had sex with my boyfriend two months before. Of course this devastated me.