reason im asking is because i have this ex who keeps reaching out to me but i never respond. he didn't treat me well when we dated and he dumped me and it hurt my feelings a lot but i moved on now and im happy. he has been calling and texting through out but i just never respond. am i wrong for not hearing him out? i just feel like he should have appreciated me when he had me and he can't possibly have anything to say thats worth hearing.