DAE I feel disgusted drinking from the same place as the person I like, but would kiss them without hesitation?

Hi, I have a curious dilemma and I’d like to know if it’s common or weird. My friend told me it’s strange that I feel disgusted drinking from the same place (like a cup, bottle, or anything else) as the person I like, even though I’d kiss them without a problem. Does anyone else feel the same way? Is it normal to have that distinction between kissing someone and sharing a drink from the same thing? I’d love to hear your thoughts!