My date wouldn’t share a straw?

I went on a first date with a guy. We were having a drink each with a straw. I offered if he’d like to try my drink. He didn’t want to use my straw and changed his for mine. I would have taken a sip from his straw🤣 can you catch things from straws? Do you think he was afraid of catching something?

My date wouldn’t share a straw?
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