Hi, I've had similar issues before. Sometimes you have to wait for other people to get back to you when they can, and if they don't reciprocate in a timely manner, then it's time to move on. Don't take things to personally as a) some people are just flaky to begin with, and b) some people are to busy to go out as often as you, and c) perhaps they don't want anymore friends in their life since they have enough. Or d) they don't think that they have enough in common with you to make being your friend worth their time before even getting to know you.

Making friends as you get older is HARD! Try talking to other people and forget about that woman. It sounds as if she's trying to politely tell you that she is not interested in hanging out with you despite what she says. Always remember, ACTIONS speak louder than words! A lot of people say stuff that they don't mean such as call me, or let's do lunch sometime, but they don't usually mean it most of the time. Some people don't know how to be direct. A nice to meet you would suffice, but like I said, some people just don't know how to let the other person down easy.

There is this site that you should look into that's free to join. You can even start your own group if you like. If you start your own group, it will cost you a monthly fee. It's called meetup.com. I met a few nice women on there, and I'm shy! If you're not that shy, you'll be able to meet lots of people on there, or at least groups that you can go out with to the movies, out to eat with, etc...