Shall I tell my ex I'm moving away?

My ex boyfriend dumped me 1 year and half ago, it was really tough. He apologized for his actions, being selfish, but I never got over him and I'm still in love with him. He has moved on to another girl, but we still see each other in passing and cordially speak. I don't get him though. He goes out his way to speak to me, but he dosent' want me, and this has added to the pain.

I have been strong, with the no contact rule, so he probably dosen't have a clue I still feel this way. Should I still tell him, or just move on and cut my losses?
Shall I tell my ex I'm moving away?
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