I wanna stop liking this girl now?

i like this girl i met at the hospital we both have cancer and i like her a lot but she haves a boyfriend and i don't even know if i like her or not but i feel a connection with her , but i wanna stop liking her because it hurts so bad knowing that i can't be with her ,but im trying to get her out of my mind , i even tried to be an @sshole to see if i could stop her from liking me and also told her that i hated texting to see if could stop her from texting me but what i really want is to talk to her i love talking to her i love listening to all she haves to say even if its just to hear her making fun of my accent and i love texting her, but now i just feel sad and like a jerk and i really feel like i need to get over this girl any tips???