Here is what happens:
-- I meet a girl via social circle, great rapport, IOIs from her side, etc. We agree that I'll find her on FB.
-- A day or two later I add her on FB and write something like: "It was nice meeting you. Cool photos

". Usually no or very short response from her side follows.
-- A couple of days later I write an invite: "Hey, I am going to a new sushi bar this Friday. You should join.". Her response is either null or "No".
-- Later I visit her page or try to txt her again and discover that she's already blacklisted me. WTF?
-- If I meet her in the social circle she actively avoids me at all costs.
The situation happens with me so frequently that I am thinking of labeling it a 'sticking point' by now.
I am really puzzled, guys - esp. by such over-the-board reaction to seemingly harmless txts that I send. And I am sure I don't come up as creepy during both offline and online conversation - I try to keep it light and funny. I though maybe there is some list kind of "Beware PUAs" and have tried to find if I am in such a list - nothing.
What the hell is this? Have any of you encountered such reaction?