I confess I'm out of patience. Again. Flake out and I'll check out, and won't come back. You're shy, coy, uncertain, traditional, confused, "complicated", busy...EVERYBODY'S BUSY, as am I. Make the effort, and I'll make the time. Make it difficult to hang out with you when you're hardly more than a stranger, and it's lights out. Won't see you around. Literally. If I have no option but to notice you (or else seem discourteous), I'll give a superficial greeting and move on. Life's too short to play games. If you're not considerate enough to think about the other person in the interaction, at least enough to explain WHY you're flaky, then you're too self-centered to be worth knowing, and I'm done.