Why my ex is keep coming back and going back again and again for past 2 years?

He tried to get me back my posting emotional stuffs like death, loneliness etc... and win me over emotionally then broke my heart by saying he does not love me.

He can't be my boyfriend.. but I'm wondering if he doesn't love me then why he is tryna get me back every time... why he can't just leave me alone.

I love him... still that's why I'm letting him in with the hope of him changing one day. I don't know what to do.

Why my ex is keep coming back and going back again and again for past 2 years?
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