Why would my ex still chat me everyday after he broke up with me?

He broke up with me due to his depression and pressured from work. He doesn't want me to stay and wait for him anymore and want me to move on but HOW CAN I IF HE STILL KEPT REMINDING ME OF himself. If he doesn't want me why can't he just stay away from me😭

Why would my ex still chat me everyday after he broke up with me?
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