Steps:
1. splice a switch near your foot pedals that turns off/on power to the headlights.
2. when driving in a "safe-ish" location at night with the wife,
randomly flick the switch on/off
3. mention you read online that this is a common problem with the stock headlights, and that the solutions are to either to try and "re-wire them yourself, which apparently has caused a couple fires because the wiring diagrams are not consistent with every Jeep that left the factory, but you think you can maybe figure it out with some good guesses" or..."hmmm...dunno...maybe I can save money and live with the random off/on instead of buying those fancy new led lights that just work by plugging them in..."
4. wait for wife to voice her opinion on what you should do...
DISCLAIMER: (this is not legal, nor safe...if your wife finds out - she will hurt you). I'm just saying that, personally, I find the best way to convince a wife/gf/etc for something like this is to make it
their idea
Then you just agree with her.
You can keep the foot switch in for other things like when you "need" a new stereo...