Sorry dude but you sound like just about every other teenage guy who ever hit puberity and had a crush on a girl.
I don't know the poster, but I do know that an adult with decades of, as this poster writes, "social anxiety", is not the same as a teenage guy with a crush.
I assume he wanted a safe place here for a little sympathy/support.
Unfortunately, just as we often say the dojo is not a therapeutic milieu, neither is aikiweb. If he cannot steel himself to speak with her, his only option is to seek some kind of formal support or therapy.