The best is once they eat after being on strike for 4 months! My male pastel goes on strike about twice a year for me and won't eat for either three or for months or he will only eat 3 times over a 6 month period. He's such a little turd!
Side note - your boyfriend in your avatar picture looks incredbily evil. Let him know that I said that it is okay to smile, especially when with a beautiful lady such as yourself!