They're still married with kid
They will divorce and he doesn't have a kid with her.
It's mentioned in the novel.
It's not detailed the reason as to why they divorced.
Heechan will realize that his father was nothing more than a child-man who couldn't manage his emotions.
I am glad that Heechan's mother is happy with her new husband who loves her
This appeased me thank you good sir/mam
You're welcome (⌒▽⌒)
Justice for heechan! Fuck that dad i hope he went bald and his wife left him!