Did I have right to say something?

Me and my bf of almost 3 years are saving sex for marriage. I do on occasion give him a blow job. Well tonight he wanted wanna and I told him that I would like for him to shave cut whatever they do down there the little hairs off his penis as I don't like them in my mouth. Well he got upset with me and now I just feel horrible for even saying anything. So am I a horrible person? ?