Did he just friend zone me?

I never really spoke to one of my uni flat mates and then one night out we kissed. Since then we’ve kissed a few times and he’s tried to go further but I’ve always stopped him. Over the holidays he’s text me a few times and on Christmas Day he text me ‘Have a good Christmas my beautiful best friend, can’t wait to see you’. I found it strange because we definitely aren’t best friends!! He barely speaks to me when he’s sober despite seeing him constantly. But then I thought maybe he’s calling me his best friend as a subtle way to friend zone me so I don’t think anything more is going on?
Did he just friend zone me?
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