Yes, tomorrow looks like it will be a grim day for Herman Cain; here’s NBC’s David Gregory reporting that a source close to Cain says he’s bailing out tomorrow.

Meanwhile, according to the Daily Beast’s Allison Samuels, sources close to Cain’s family say the allegations of sexual misconduct have shaken his marriage.

The Cain campaign denied any strife in the marriage, but one campaign worker speaking anonymously said that Cain doesn’t want to quit because he doesn’t want to be seen as a loser.

No matter what happens to Cain’s presidential aspirations, sources close to his family say the accusations of infidelity have already taken a significant toll on an already strained marriage.

A close friend of one Cain’s two children explained that Herman and Gloria Cain’s marriage has seen its share of trouble over the years and his attraction to other women always played a huge role in the friction.

“It never felt like a real marriage when I was around them,’’ says the friend. “Mostly he was always gone and his wife seemed to be OK with it. Not being together seemed the norm for their marriage, and Gloria didn’t seem to mind. His kids didn’t seem to mind either. ’’

The friend noted that when Cain was around, he seemed completely in his own world.