However, if Nathan got healed only three weeks ago, he must have grown the Beard Of Depression at record pace

Nathan obviously has two superpowers, flying and extraordinarily speedy beard growth.

It also means, I guess, that he never moved back with Heidi and the children but moved into Peter's apartment directly

So it looks as if the only thing Nathan did to drive Heidi away was to actually tell her the truth, all the rest is down to dear old mom. Angela obviously took the Empress Livia as her role model and is trying to outdo her. I'm undecided as to how much she knows about Peter's situation but as it's Angela until I see concrete proof that she doesn't know I'm going to presume she does.

I had been presuming a much longer period of time for Nathan's slide into depression and alcoholism and, beard jokes aside, I still think a period of three weeks is a little short. On the other hand I really hadn't considered that he might have been in hospital in terrible pain for two months.

Bob continues to be way more shades of grey than I thought when this season started.

Yes, there are times when I think that he may possibly be right about some things and from his point of view locking Peter up when he can't control his powers must seem very sensible. I can now actually see why Claude was working for the Company and why he went to the lengths he did to try and get Peter to learn control. He and the Company seemed a bad fit before, but now they don't. It's all very interesting.