Does my teacher like me?

Well im in college, not much of a relationship hence why i'm asking this question. So i like my math teacher i believe she knows this aswell.(i think?) It's always casual talk with us and she always stays behind class to talk to me or we walk and talk etc. Well we have a big test coming up and i suggested as a reward that i should get a kiss(was just wanting to see her response) anyways she laughed and said sure! Once i ace the test.

Long story short am i getting anywhere or is she just playing?