We just booked our return trip for $89 per person. Weekend returns were much higher so we are flying Thursday to THursday. $109 there and $89 back. THanks for the heads up though!
I was dissappointed with JetBlue also. Found Airtransat out of Montreal March 10th - 20th - direct, great flight times, and they were $450 each (Jet Blue wanted $421 US).