How can I miss someone who didn't treat me well?

he didn't even check to see how i was doing after i had a biopsy. he didn't even care. he called me outside of my name sometimes. and he even threatened to go sleep with other women if he didn't get what he wanted when he wanted it. he even acted like it was a chore to be monogamous. he is no longer speaking to me, because i got so angry and fed at him that i wished something bad on him, and now i miss having him speak to me (when he did want to actually contact me that is).