My friend is acting like she likes me..and we're both girls..and i'm straight..!?

okay, so i was friends with this girl when we were little, then we didn't talk for like four years, then we started talking via facebook. but i looked on her "interested in" and it says women and men, and i'm fine with that and all, but then she started flirting with me on chat and then she did that social interveiw thing and it asked if she would trust her life with me and she wrote "HECK YEAH<3" and then i was like "awww...really?(:" and she did "<3<3<3(:" soo i started to feel a little awkward and then it asked her if she thought i was romantic and she said 'O.o" so i thought i was good but then i commented '?' annd she said "hehe...love ya(:" i DONT like her like that but i think she might and i dont wanna be rude but now i feel super awkward? help!