Friend problem......?

ok my VERY close friend keeps dissing on me. i mean today when we were at a bday party and we were gathered around i started chewing on some ice and she was like "wow gwen im appaled that ur eateing ice. i thought asians dont eat ice.' i was like wtf? that doesnt even make sense?? why cant asians chew on some ice?? anyways i told her off saying " hey u know my BEST friend told me that reds the color of prostitute" (she has red hair, and i have nothing against red heads, my friend actually told me that and i LOVE red) anyways like 8 seconds later she makes a comeback but when she did everyone was like 'thats not a comeback! thats like 8 seconds too late" anyways i got her there! ha! but she has been doing this to me for like a month now! everything i do she would make it asian related like 'hey dont mess with gwen she knows ninjas that will whoop your ***." or "hey shouldnt u be like eating rice?" im sick of it but i always have better comebacks:) WHAT DO I DO?I WANT TO TELL HER OFF!!