On hand #2, I can't see how this is anything but a call. The & are on board in a 4bet pot making his flush that much less likely, I sure can't put him on any T's here when he donk leads 3 streets. I think he has AA/KK/AK or air. He could be value betting AK since you played it trappy and there are a lot more combos of AK than AA/KK.