I'm very saddened by the news about E-musu-sensei's passing. his work was one of the very first Fakku has ever published and one of the best in the industry. He will be dearly missed. :(
Yamada-kun proves himself to be a man of culture by falling for an older woman. Yoshida-san has her long-cherished desire of motherhood fulfilled after (a-hem) initiating Yamada-kun into "the ways of men and women". Both of them might be said to have had their "inner pervert" awakened, but it seems that it will only happen from here on with each other.
To "Split133": the only acceptable excuse for "Ex-Husband" not being around anymore is "Six Feet Of Earth".
This "Match Made In Hentai" is ... wait for it ... APPROVED!
With such a perfect woman right beside him, why would he bother going for anyone else?
Well, better to realise that fact late than never, I suppose. And hey, it had a great ending!
Marriage/Pregnancy is always a great way to end a sweet Vanilla release, and I'm glad they both seem really happy. Him being rejected by that other girl must have just been the Hentai Gods letting him know she wasn't the one.