He feels more like he failed her, but you know that he just became over protective of her. And Atty-Lia moment will probably tend to be sweet since she sees him like a brother [s]not a on Atty, so quit calling her mom [/s]. Just like she sees Kat like a daughter, so their moments will probably tend to be sweeter too. :)

And KittyKat, don't be sad. He will prove himself a million times over I'm sure. ;)