What do I do when my best friend hurts my feelings everyday?

My friend almost never lets me talk and never listens to me. Whenever I’m telling a story or talking, she either turns away or starts talking in the middle of what I’m saying. She does this every single day about 20 times a day and whenever I tell her she interrupted me or I tell her to stop, she just says “I didn’t interrupt you” and denies it every time. I went to her party with only three other girls there. We were talking in her room and whenever I tried to tell a story or say something she would say “can everybody just stop talking it’s hurting my ears?!”. She ONLY said it when I talked, not anyone else except for one time when another girl screamed and that was only once. I don’t tell her every time she interrupts me, probably only once in a while. But when I accidentally interrupt her, which is only maybe a few times a month, she says “See, you interrupted me!!” and I say “You’ve interrupted me a million times more!!” and she says “Nuh uh!!”. I don’t know about ya’ll, but this really hurts my feelings, and she does it every single day!! I don’t know what to do because every time I tell her what she does, she denies it. And I really believe that if I tell her that it hurts my feelings, she will say sorry, but will keep doing it. What should I do?