The real father banged Ai and Himekawa's mum. Himekawa's mum and then-partner committed suicide potentially out of guilt or whatever over this affair. That's what I had in my mind. But either way, this ain't over. The real dad who is responsible for this is still out there.

What they didn't cover is whether Aqua's acting got better or worse after he let go of all this. Presumably his whole "I am hurt because I can't like acting" thing just falls away.