Franks near-death experience didnt leave him a changed or better man. It simply lead him to his epiphany that he needs Claire more than he admits, or even realizes. His apology is likely the most sincere weve ever seen him. This is not a man that likes to admit when hes wrong, but he lies it all out on the table for her. He not only recognizes that they are better together, but that he cant survive without her help. I said you were nothing without me, he says referring to their Season Three fight, Its the other way around. A rare moment from Frank where he isnt trying to be the most powerful person in the room. He now understands that Claire was meant to be his partner in life and in office