With the intentions you have for her... You are going about it all wrong. I also agree that you are sounding like a stalker.
You are giving way to much of what your willing to do for her. There is no reason that she will ever go after the chase for you, because you have already told her everything that says she can get you if she ever even wanted to. (I will buy you things and spend all my money on you, making a pet name for her yet there is no real connection that has been made, and your texting her, not her texting you to start a convo)
If you really just want to get ass, you have to make the female chaise you, not chaise them. Be over confedent when talking about your self, to the point of almost sounding arrogent, supperficial and concieted. Have something planned (a party that you know will get off the hook) and find out what she is doing later, make your party sound like something way better then what she is doing, but dont just hand out an invite to her, make her talk it in a way like she wants to go and then just offer a maybe I will hit you up later... In short be an ass, concited and show a reason that she should be intrested (not that you will spend your life savings on her or hopefully she will go out with you sometime). Make her chase you, not the other way around.
In the end, your text messages make you sound like you only have money to offer her when infact you have to sell your self in a positive manor and concited way to get her intrested. So I dought you will have a chance at all with her the way you have texted her.