I'm in my mid 30s and its still the same. I do well in a one to one with women, and have some girlfriends I get together with.
And I am part of a moms fitness group and I am friendly with them, we all make small talk...there is no animosity between us. So I'm not saying women hate me, this isn't the case.
But I can't seem to be good friends with them. The friendships never progress past friendly acquaintance unless its a one to one. I recently saw on facebook that a large group of them got together for a night out, to which I wasn't invited. But this is the story of my life. Other "new" women can fall in with an already established group, but I don't.
However its totally different with men. I have no issue being well liked, and invited places...I can tell they want to hang around me, versus most women that are nice to me, but don't have an interest in pursuing a deeper friendship.
I have similar interests as typical women and moms, uts not like I want to talk sports or cars all day, though I do enjoy those things, but I have female hobbies too.
I have been told on more than one occasion by males friends that my personality is more like a guy and that I'm not a typical woman, but I don't even know what that really means at this point. I want to connect with other women, mostly because I am married and basically have lost touch with all my male friends and making a new guy friend would be a problem in my marriage.
I just can't figure out what it is. I think maybe I'm boring? Or just the opposite, come off as stuck up...but then why is it so easy for me to make male friends? If I was such a shitty person, wouldn't I be off putting to men as well? Men randomly strike up conversations with me, and I do with them, complete strangers, and they are nice and friendly. I try to do the same with women and most look at me like "why are you talking to me?"...
Just last week, I went with my son to a book sale at his school and he's picking out all these books that aren't really reading books. So I walk him over to the novels and I'm like "you need to buy something you can read!" and there's a dad with his kid telling his kid the same thing. Whether it was a dad or mom, I would have noticed the funny coincidence and said something, so said to the dad that I was just telling my son the same thing, and of course I'm laughing...because its funny (I think everything is funny)..and he's laughing and talking about the same thing...and when I tried to move on to more books with my son, that dad keeps talking to me and I have to politely end the conversation! I would never have gotten that response from a most women.
And I'm nothing to look at, so its not my looks. Seriously I'm fat and I know no one on this site has ever seen my face (I do not look like Marilyn Monroe!) But I'm not attractive, like at all. In high school all my close guy friends always had other girlfriends (dating wise), and I was told by one of them one time, I'm the kids of girl that's fun to be around but not that kind of girl to date...
So its not that these guys are hitting on me. I've never been hit on before. Its more like when two guys that are strangers share a funny joke over something (I'm sure you've seen that or know what I'm talking about)
That's the story of my life. I'm definitely big on humor, but plenty of women are funny...I'm so frustrated. I feel like asking the ladies at my fitness group what's wrong with me??


when they do that!), it's just that they haven't grown up usually. I have perfectly fine conversations w/strangers, but they are usually older than I and open to having a conversation. I try w/younger ones or the other mom's of my school age kid and they like look at me like I have three heads. Whatever, there are all sorts of people out there. I have actually had the best luck meeting nice people at the library that will acknowledge me when I am out and about in public when we run into each other. 
I'll be you friend!