This was such an interesting twist on many standard themes. Infidelity - ouch; Harry's cluelessness about so much, for so long; the uneasy resolution of his desire for children, his need for a stable "normal" looking married life, and yet also, the way he restlessly seeks something else.
I loved the wizarding internet and Harry's fumbling use of it. The affectionate depictions of George and Neville. The worries and time demands of infants; not often seen in HP fics.
And then there's the increasing ambiguity of Harry's deceptive, and self-deceptive, life, and Snape's rescue - or was it a takeover? While Snape, for his part, is both helpful to people but very selective, and not notably ethical. In the end, there are no clear answers and not even any physical romance, but Harry is (almost) grown up. About time, lol. You've crafted a very interesting fic, and unlike many, I'll be thinking about it for a long time!