It's so like rehab isn't it?
Not that I've been

... .better put that out there

It surely is a strange cycle to be involved in. And... .it hurts when things happen in your life and you reach out to them and they're unable to support you - even though they've built themselves up to be this person who you could always turn to and count on.
During my time with my ex, I had two funerals for grandparents of mine. Both funerals came shortly after a recycle had finished with 'him'. It made me feel even more spaced on the day of the funerals as I felt the pang of needing comfort even more yet he couldn't offer me any support, he was distanced emotionally at these times from me. They can't give us what they condition us to believe they are there to give us. It is a rollercoaster and I'm sure that in time we will leave our experiences behind as learning curves. It is just going to take a little time.