Welcome to the forum Luthien. It's good to see you over here and to hear that Phoenix is doing really well.
It does sound like he is wanting to let you know he loves you if he is being gentle. My Roscoe is almost 2 now & he can be impish at times. He does like to nip my arm when I have him out when he is in the mood to, but he is not really being mean about it. He is just trying to be playful & doesn't realize he hurts when he does it.
They do go through what we like to call the terrible twos like human children go through where they think they are independent of their parents, namely us and want to do things their own way. Then the next instant they are poofing their head feathers & wanting to be cuddled like the baby bird they really still are. Roscoe goes through this a lot right now, but not every day.
Keep us informed as to how it is going and if you are still having issues. And more photos are in order. We are having a photo contest this month & you still have time to enter.