Hope you don't mind my stepping into the conversation..
Why, you sound like a great person who is a *lot* of fun to hang around!
As a girl geek myself, I know that sometimes it can be really hard to fit in.. And my protective streak wants to find all of these old friends of yours and teach them *exactly* what they did wrong..
I, too, tend to be overly trusting of people, though while this has on occasion gotten me in trouble, it hasn't changed how I behave.. (Maybe I just take longer to learn from things, who knows?)
I recently had a very amusing conversation with my aunt.. When I told her that I'm hanging out at a friend's place and my fiance decided he wanted to stay at home, she told me I should patent my relationship ideas and teach them to the world. Basically, he and I love and trust one another, but we also understand that we cannot be the entire world for the other. He has friends and so do I and sometimes we'll want to see them alone. Or sometimes we'll want to do something that the other is less interested in. Since we trust each other, there's no problem!
Amusingly, most of my friends are guys - and this neither gets in the way of the friendship nor worries my Man.. Being close to someone doesn't mean you're promising anything, so there shouldn't be any problem with being close to a guy and not wanting anything but closeness from the relationship. And if the guy gets the wrong idea - tell him it's the wrong idea. Usually they can get over it pretty easily, especially if it's obvious you love your husband. (Which it is, by the way!
)
Hugs!