shit like that is so wank

other than being lame it's aggressive too; it's not a playful neg

as other posters say, move it to a text like "is now a good time to call you?" or "what r u up to?", from that you can get a response from her that means when you *do* call her she will pick-up, you two have a chat where you reign in these relentless negs and instead add some value to HER and make HER laugh, then make your plans on taking her out. Job done.