I highly doubt that the image of Chuck as a fire-spitting, brother-hating monster makes Rebecca willing to take care of him.
In all fairness though, we do not have enough information about their relationship to make any thought in that direction. We do not know how often she actually got his back during their marriage…

Sooo… Lana definitely is an undercover agent right?
The only time we saw Lana really considering sleeping with a man for other reasons than pleasure (or pissing of Archer as in Pocket Listing) was to secure a promotion (A Going concern). Therefore, I assume that this was also more of a "work thing" for her.
She tried to…