Tristan is also very "play thing" regarding the middle of night feeding. He was off 1 week from last week the 2 nights ago, he woke up at 4am. Then last night back to sleep until 6.30/7am. So I don't even know if that's really off or not.
I also just went back through the messages and saw that. Sorry to hear your sad news but be strong. Just think on the positive side, like you said it's a relieve for him also.