Oh, Bunny! You don't believe this too do you? LOL
Ok, I'll try to be brief-- he's just not that into you! LOL
The sad thing is that line always applies with men.
Men are just as shy as they have always been, there are just fewer men to choose from in the black community so many of the agressive BM end up in jail or become uber successful and hit on women that they consider of a higher standard (i.e. white or just plain non-black). The good-looking, well-employed brothers that most of us want are picky as heck and are just enjoying the view when they stare you down, but please understand if they truly wanted you, they'd be on you like Donkey Kong.
The regular brothers who are more laid back and docile just take their time waiting to see if you're worth flirting with. Think about how many men you turn down in a day.
Seriously, women say "no" or ignore men just as a general reflex mechanism, so smart men don't waste time with chicks that don't meet their benefits-risk ratio. Are you attractive enough and are you willing to offer him what he desires (which may not be a relationship), that's what it all boils down to.
Case in point, I'm crushing kind of hard with a new guy at work. We're like on week 3 of the staring, sitting next to each other at every chance, reading each other's facebook pages, him rubbing my arm when he tells a joke, asking me about my weekend plans and I am loving every minute of it. In fact, I probably only have 30 more free minutes before he returns to his desk behind me. It takes time to get to know each other and avoid wasted money/time dating an incompatible person. On one hand, I'm annoyed that he still hasn't asked to take me out definitively, but this getting to know him time is sweet. I can tell that this guy is vetting me by asking me about my value system, explaining his views on credit and asking me about my credit history/spending habits, asking about my family and trying to see if I'm willing to go to different cultural events he enjoys. We don't need men to try to rush things and ruin what could be a great relationship if it's started right and slowly.
Patience is a virtue and when the right guy acts shy but is truthfully studying you to see if you're worth his efforts, you will be the one to reap the benefits.
And think about it, do you really want the brazenly aggressive male? The kind of guy who comes up to you and wastes no time asking you out, although he barely knows your name or is a complete stranger. I don't want him because his cockiness is built through experience of randomly hitting on women until one gives in. I'd rather date the pragmatic man who takes his time choosing me and determining if I fit his requirements for a mate. I want a guy who appreciates me as a total package and takes his time approaching me with the respect I'm due.
Oh and my guy just paged me, dang I can't wait for him to ask me out already...