Hi Deb - As someone who lived throught the numeorus 'this is the end' saga, I can tell you this stuff does happen over time. And there may be the odd contact in the future, just be prepared to consider it part of the closure process.
Totally agree with Ellie, there will be at least for the next year, moments when he is not 100% present, be strong enough to give him the space he needs. This is grief, and it is real to him.
For yourself, now more than ever you need a plan. Definitely more tight sweaters, but also more time for you. IT is so important to recharge your batteries.
Slowly
