If not dump her, at least see less of her. IINM, Debbie Allen has somewhat of a full plate behind the scenes at Grey's (I think she is a producer now, and will probably direct an episode or two), plus her recurring role as Hondo's mother on SWAT. Maybe the whole Gemma storyline is a way for maybe Catherine to leave Richard and be out of town constantly at the other Fox hospitals.
Funny, my take on it was maybe he thought that his brother was only carrying credit/debit cards and didn't have actual cash on him, rather than not having any money at all. (some vending machines do take plastic, but seems to me that Pac Gen wouldn't have any of those).