Re: "I can see a divorce within the next five years. "
You never know...they might end up happily together for life.
Just because parents are screwed up doesn't mean that their offspring are condemned by genetics or upbringing to be the same.
Quite often kids from screwed up parents devote their rest of their lives to making families of their own which are stable and loving, because they have been traumatized by their parents and refuse to have any more of it in their lives.
And it works exactly in the opposite way as well.
There is no shortage of righteous frum Jewish parents, devoted to each other, who have raised their children to obey Torah and be good Jews, only to watch in dismay as one or more of their children become psychopathic murderers and hard core criminals.
Sometimes these deviant children appear to have been born that way; showing criminal traits and behaviors as soon as they can talk well enough to tell lies.
What I write above is the truth.
If you don't believe it, just go ask parents in your Jewish community.
Or research the backgrounds of famous Jewish Gangsters like Louis Lepke or "Dutch" Schultz.