Looking back now, Cat's speech in S4 matches Alicent's current personality (at least until showrunners decide to change her again next season):
Cat saying she wished the boy would die. Then some time later Jon got the pox mirrors Alicent's "you're no son of mine" and years later Aegon was burned alive.
Cat saying Maester said he had a tiny chance of survival if he made it through the night. And she sat by his side in the darkness, praying for Jon to live. It mirrors Alicent's guilty sitting by Aegon's side.
Cat saying that she couldn't keep her promise. Then concluding that everything that happened since then, all the horrors, were because she couldn't love a motherless child. It mirrors Alicent's treatment of Aegon (def not love involved, when we compare to Helaena and Aemond or Daeron), even being her first, she couldn't love him like she loved the other ones.













