sorry i have to say more (i'm typing little because baby is now sleeping)...
the sitch is perfect. he leaves this note 'forgive me,' you say nothing back, he hears nothing. he is with ow but at the same time he hasn't heard from you which surprises him. he hears oh, you are now _____ (playing an instrument, doing a new sport, volunteering somewhere) and he wonders who you are meeting. he asks you about bub and you sound happy and distant. hmm.
and it starts from there.
and all at the same time you really are detaching and becoming happier!
