What should I do if my male maths teacher calls me his crush in human form and video calls me when I'm not at school?

So my male maths teacher is unusually nice to me and gives me snacks even though I don't ask him for any; he talks about how he doesn't want people to badmouth me because of how unusually close he makes us out to be so he's "protecting" me in addition he calls me "my crush in human form" and on the days when I'm absent from school he video calls me and he knows that usually when I'm absent from school it's voluntarily because I have to study for tests yet he still calls but I don't answer... he just called and as usual I didn't answer but I don't know if I should say anything or just totally ignore the fact that he called and act like I didn't see the missed calls

What should I do if my male maths teacher calls me his crush in human form and video calls me when I'm not at school?
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