So sometimes he responds quickly sometimes he reply after many days and apologise for replying late saying I was busy?

He is confusing me a lot he shows so much interest at one time talking to me and sometimes just keep my text on read i mean what with his mind? Well i like this guy but still its so annoying when i ignore him and tell myself i will not talk to him he again comes back nd I can’t stop myself from replying him WHAT TO DO?
So sometimes he responds quickly sometimes he reply after many days and apologise for replying late saying I was busy?
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