Hmm well, nothing like a timeskip telling me things will get even worse.
Sure Ai soared to great highs with her lies (rhyming like a true poet here) but ultimately she paid dearly. Not buying that argument.
And are you really in a position to judge someone else if you've become a manipulative, lying, egocentric person yourself.
I think Miyako is not really up to her mother role and it doesn't help that her ex husband doesn't seem to care about Ruby either...