Girls, I know what you mean. I have one girlfriend and she's as good as gold, but she has 3 kids, works full-time, and still has every friend she's ever made! Needless to say, she doesn't have much time for hanging out. I usually see her a couple of times a year for lunch or something. We talk on the phone maybe once every 2 or 3 months. I love her to death, but it does hurt that she doesn't have much time for me. I understand, but it's hard because I miss her. We used to work together and we were really close back then.
But I don't try to make friends anymore because I don't trust anyone. I've been hurt by everyone I've ever been close to, so I just figure the fewer people I let into my life, the less pain I'll have. I guess that's a sad way to see the world, but that's been my experience. My psychiatrist said I was just picking the wrong people. Please... I very rarely pick them.
Anyway, the way I feel about it all is part of my borderline personality disorder (which is largely responsible for my depression). It's all black and white thinking. No gray in my world. It's good or evil, up or down, black or white. I know better, but that's the way I learned to see things, and it's hard to learn to think a different way, especially when I believe I'm right about things!