Attachment issues?

Why does my heart miss him so much. He’s all I can think about. Even though he was a narcissist, he disrespected me, he didn’t value our relationship, and he was emotionally unavailable. WHY does my heart still want and miss him. It’s not fair to me. I want to stop loving him, he didn’t deserve me and I didn’t deserve to put up with all the things he made me go through. I feel like I can’t live without him. Is this attachment issues and how do I get rid of them? My heart is so broken I genuinely can’t handle this anymore.
Attachment issues?
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