My boyfriend broke up with me 6 days ago but he is sending me "good morning and sorry" "good night and sorry" messages everyday, what does this mean?

The first two days I didn't respond, but the next day I responded "good morning", but he didn't reply to it then he just sent me "good night" at night, he wouldn't respond to my replies and also isn't trying to contact me or talk to me, he's just sending good morning and good night texts. Is he just playing with me? What should I do?
My boyfriend broke up with me 6 days ago but he is sending me "good morning and sorry" "good night and sorry" messages everyday, what does this mean?
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