Early on she told me I'm kind and make her happy
That's what we call the 'friend zone' my friend. There is very little you can do once a woman places you in this category. My suggestion, buy some PUA material if you haven't already and learn now to build attraction. Being 'kind' will lead you to frustration every time.
She gets jealous when I talk about other girls and acts like we are together.
Typical, women hate competition. If you want to toy with her, continue to talk about girls, especially girls you are interested in...this will drive her nuts. And if at all possible, let her 'see' you flirting and having a good time.
