Sounds like IAGirl's pt on top of your protein rich daily condish tipped your hair over into protein overload. A good dose of protein perks curls up if you're overconditioned, but too much protein can pull the curl out, in addition to leaving hair dry, straw-like, and crunchy. Check out the first pic here. It's a good illustration of overproteined hair.
CG since 11/2011
2c /3a F /Mii, low porosity

Winter Products /Routine:
Clarifying: ACV rinses, Suave Professional Men Deep Clean Peppermint
Low Poo: Renpure Luxurious Argan Oil
Co-washes: VO5 Kiwi Lime Squeeze or Strawberries & Cream
RO:
Tresemme Expert Selection Perfectly (un)Done, Cure Care
LI (if needed):
Tresemme Expert Selection Perfectly (un)Done
Stylers: FSG, L'Oreal Studio Clean gel, Tresemme Flawless Curls Bouncy Curls gel
PT: IAGirl's as needed