My girlfriend (28f) of 18 months asked my (31m) preference about her pubic hair and now finds me sexist

Ok so yesterday my girlfriend casually asked if I preferred shaved, trim or au natural. Now before I answer I will add that I have been with 3 girls in my life and each was au natural. I have never been with a girl that shaves or trims. <br><br>I answer her completely honestly and tell her that I don’t know yet, we have only been together for 18 months, so I say au natural since it’s all I know. <br><br>She is quiet for a moment and then goes on about how I’m sexist and she’s upset about it and just runs off into another room. I am left dumbfounded. Once I realize what she said I go after her and try to talk to her and she won’t have it. She won’t even look at me or acknowledge my presence. I try to talk to her about it and I get nothing. I go back to the living room and she eventually storms out of the house with nothing but a purse and drives off. <br><br>She won’t answer calls or texts. I’m at a loss as to what to do. I can’t think of a reason for her reaction other than she thinks I’m lying about her being the only girl I found attractive. <br><br>What do I do?