Why does he always unadd me on Snapchat just to readd me later?

Anonymous
this guy and I have been on and off for almost 2 years now and we haven’t hookup you or dated or anything but he always acts all flirty. however, he always unadds me on Snapchat for no reason and then readds me whenever he feels like it. I asked him once why he does it and he said “idk” so do I block him or something else? Please send help
Updates:
17 d
So I added him back last night and he added me back in.2 seconds and we started flirting all over again like nothing was wrong... I don’t know what I should do. Keep talking to him or unadd him?
Why does he always unadd me on Snapchat just to readd me later?
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