However the cabin temperature was either too hot or too cold. Like a fridge until the meal was served, then like a hot & stuffy oven until the "breakfast" was served when the temperature dropped again.
This is a common drill on a pax aircraft. The flight attendants complain it's too hot while they are up moving around getting ready for a service so the flight crew cools it down for them. The FA's are walking around, hormonal, etc. while you are sitting still a couple of feet below in the seat. You feel cold when they feel comfortable. Later, the meal is over, they want to relax, they sit down in the galley, jumpseat or contractual rest seat below the current of warmer air that hangs in the upper third of the cabin. So, they're cold, they tell the pilots to warm it up. Next meal, the cycle repeats.