In the first few months of no contact, yes at times I would. I was horribly confused about this because I still had a desire for her but knew better. Than I realized it wasn't so much a desire for her but the fantasy that she projected on me. Once I understoof that, I mo longer wanted her...
The fantasy of her words and seductions were what kept me around. She worked like crazy (scuse the pun

) to make sure I couldn't see the 'real' her. Kinda like the wizard of oz and the man behind the curtain. She knew the way to keep me around was to keep my mind in a constant fog. That is also why she went to great lengths to take up all my time. She wanted me exhausted to not only fill her needs, but to keep me on low energy so I wouldn't figure her out
Also, 'break up sex is quite common in any relationship. I remember one time where my HPD was on top of me doing her usual porno type thing and I found myself feeling nothing. In the end I could see right through her...her act was so transparent and it was clear as hell I was feeding her addiction and there really wasn't much of any intimacy. It was a sad feeling for me to see this, but one that helped to propel my leaving for good
A word of caution. I would strongly urge you not to even consider your ex as booty call. Your fooling yourself if you think you can handle it. It will be just another easy way to draw you in. I know this from experience. I made a booty call agreement with her at one point and all that did was allow her to draw me back in...and it also allowed her to hurt me even more
Boundaries my man
You have to remember above all else they are masters at manipulation, and even if you think your in control, your really not. No contact is the only guarantee for full healing
I know this is hard, but just keep looking ahead