Look out, Franc - that devil on your shoulder is opening a can on spinach !!
Tom - I did about the same as you, but my heart wasn't up for much haggling so I only got him to drop $500.
There would be rehab programs available, but nobody that has been afflicted wants to quit. So, Franc, you'll just have to tell Cathy that the 12 step program is out of the question.
Perhaps if you promise not to blow money on mods she'll cave - although a CAI and new tires and perhaps some interior bling can hardly be called "blowing" money.

The best solution is to bribe friends to tell her she looks younger & slimmer in the Crossfire; then you'll need to buy two.