When I was seperated from my H I did not say as many things as you are saying.. but I did say if you are happy with her go be with her.... in a very calm way. This scared the F*ck out of him,,, anyway you do not need a your head checked. I wondered too why are you with me when she is supposedly soooooooooooo great?
it is your mind playing games with you... I dunno what else to say..... you need to sit down and really ponder why you are pushing him away,, I used to push H away too all the time,,,, abandonment issues I do think for sure,, my Dad left my Mom, so I think we are assuming all men leave and expect our H's to do the same. It is a viscious cycle..
I dunno if any of my rambling helped but you are not alone.... sometimes I still obssess about OW and I have been upset @ it longer than they were together,, it takes time honey,, but it will get better. I promise ,,,you just have to work harder for your own Sanity. I too drive myself nuts sometimes thinking about her and I know my H is soooooooooooooooooo over her. He himself told me... " She is soooooooooooo over ,she is history.."
.... and I still hold on to her!!! (WTF???)),, I feel just as lost as you do sometimes.. I hope someone else will give you some great advice so I can " get better" too ,by reading their advice..Hang in there honey you are going to be fine,, just let her go little by little..K? God bless...