I've known my best guy friend since we were 11 years old. If something was going to happen, I'm sure it would have by now, but it's not because we're jussssssst friends! We've never dated, never kissed, never had sex, never even had any awkard moments of anything because we're just friends and that boundary has never been crossed. We are literally like brother and sister. I know his family, his family knows mine. That's what happens when you know someone for a million years. Why would this relationship threaten my boyfriend? He says when we hang around, it makes him uneasy. He has friends who are girls too, but I guess none that he hangs out as often as my guy friend.
Most Helpful Guy
Every situation is gonna be different, but I think it usually has something to do with the fact that most guys (I think... maybe it's just me, though) are aware of their own drives/desires/attractions, even when it's just a "friend", there's almost always either a current or past sexual or romantic desire/attraction to friends of the opposite sex. It doesn't mean it was ever anything serious, but I think that because guys know that their female friends have probably been the subject of sexual or romantic thoughts even just for a brief flicker of time, they feel like guys who are friends with their girlfriend have at least had that thought at one point in time, and / or given the right conditions / opportunity would at the very least like the idea of having a sexual relationship with their female friend.
Obviously, like in your case, just because a guy may have had that thought go through his head at one point (or even to this day), it doesn't mean that anything ever would happen, but on some level I think in most cases, guys are pretty open to having sex with any decent looking female.
Again, I'm not saying this is a 100% rule or that all guys are like this, and I'm not implying that just because that thought crosses a guys mind that it means that the friendship is any less genuine or that there is any serious intention, but it's more like we're thinking "I know you've thought about banging my girlfriend, at least once".
Maybe it's because we feel threatened by the fact that you've got an emotionally close relationship with another guy, or that you might like/trust another guy more than us, too.
I hope this makes a little sense at least, and hopefully it's helpful to you, at least to get a glimpse inside the thought process of a guy who's struggled with the same scenario that you/your boyfriend are dealing with.
I think the best way to make him feel better and more comfortable about your friendship with this guy is to spend time together as a group, and let your boyfriend see that there ISN'T anything there. Make sure you do pay special attention to your boyfriend when you're all together, too... cuddle up to him, be physically affectionate with him, make it very clear that he's special to you. I had a girlfriend once who had a lot of guy friends, and she would run up and jump on / hug her guy friends in front of me, make them carry her around on his back, etc. in front of me, it made me feel like she had more fun / liked them more than me...1
Most Helpful Girl
I gess it's because you've practically grown up together and you know a lot more about each other then their partner does so they find it a little threatening/intimidating.0