The first thing I thought it when you said being blunt is a specialty. I wonder if sometimes you may come off too forward? Your approach seems to be okay, casual conversation and seeing where that leads. But sometimes in my experience, when I come across something that is too blunt, it is a turn off. At least when initially getting to know someone. Try mirroring them, communicating the way that they do so they have time to get to know you little by little. Not just whammo here I am LOL that to me is totally the friend type of guy.