Why won't my boyfriend kiss me anymore?

He used to kiss me but for the last two dates , he would never kiss me on my lips , I asked him why won't you kiss me on my lips? He told me " it's nothing , I didn't change , next time we meet I'll kiss you a lot " , I wonder what it could be ๐Ÿ˜ž I don't have nice teeth but I make sure to wash them before I see him , what do you think might be the reason for him not to kiss me?
What are your thoughts?
Why wont my boyfriend kiss me anymore?
Why won't my boyfriend kiss me anymore?
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