Anti Ice
50 - 60 hours seems like a lot of flying for 6-7 days, I can't see how anybody could criticise you for working that hard.
Flying 9 hours a day, every day, around Europe must have been exhausting. Average 1hr 40 min per sector with 50 minute turnrounds would have you doing at least 3 sectors a day / 21 per week.
Of course that would just be the average for the people that you were flying with. Some must have done 25+ and others only 15 or so.
How many sectors did you do in that period?