Friendship Thought

So recently I've had to struggle with what I thought was jealousy, when it came to my boyfriend and his new friends. And I hated it, because I didn't like his friends (one in particular), for no reason, other than they were his friends. It didn't make sense to me, and I hated feeling like that; I had never met them, knew nothing about them, so it was completely unfair for me to judge them and disapprove of them. But I did, and I couldn't figure out why.
And then it hit me. Like a steam truck. I was talking to my mom, when it clicked: I wasn't feeling jealousy. I was feeling confusion, mostly. See, Ryan has this friend who he hangs out with a lot, and they do stuff together, and have a great time and such, but I REALLY didn't like her. For no reason whatsoever. But they're close, and yeah- have a great time together. And I realized that I don't have that, and never have had that. I have never had a friend to hang out with as often and whenever I wanted to. I've never had a single person (let alone a group of people) to chill out with and do stuff with all the time. And Ryan does. And I don't understand that feeling, because I've never had it. I don't understand what it's like to hang out with one person all the time, purely as friends, because I've never had that. So all of a sudden those negative emotions I was having about his friend and his group of friends just went away. Because now I know what those feelings are, and why I have those feelings, and I feel so much better, now that I know they're not feelings of hate. They're not feelings of jealousy (much. :P) and such. I just don't know what it's like to have those kinds of relationships, and so for all I know, it's perfectly normal. It could very well be 100% normal for him to have these interactions with these people. I just don't know the feeling.
So it's confusing, yet at the same time it isn't. I hope you could keep up, cuz golly, trying to explain this without hand motions and facial expressions is a pain in the butt! It's a pain explaining it in person too, just not as much.
So that's that. I know that when I go to college I'll probably learn what it's like to have close friends like that. But in the mean time I'm just going to have to learn to give out some slack, relax, and just be the best girl friend I can possibly be.
After I sleep for a little bit. :) G'night!