pregnant married SOL manga ?

[Tcof]

I need help find this manga
As the tittle. It is Sol where the wife pregnant. but the last time i saw it, i think there is a cheating cliffhanger. maybe wrong, it been years.

 

[zalagires]

Spotted Flower?
https://mangadex.org/title/2152/spotted-flower

FYI : this is spinoff with difference alternate universe from author previous works : Genshiken
Major spoiler

Spoiler

is it called cheating if he do it with former man ?

 

[Tcof]

@zalagires
It is not cheat if he do it with hand-chan. otherwise, yes