Before I accused my wife I would make sure it wasn't nutrient burn. You could try flushing and flushing, and then flushing some more, with just plain water PH'd to 6.8 or so. If she starts to get better after a week or so, it was nutrient burn. Otherwise yes, that's exactly what the brush around here looks like when I spray it with Roundup or Crossbow.

Good luck keeping growing from your wife. That's going to take a bit of doing.