This episode is very special to me, mostly because I'm gay. When I watch Marc's death scene at the beginning, something in my heart breaks and shakes me, it's something really deep that a person is being killed because of something he didn't choose.
I'm not a religious person, in fact I'm an atheist but David's struggle with faith and his sexuality and the conflict it creates are beautifully written and portrayed, because homosexuality and religion are two opposite and conflicting things. Kate Robin is one of my favorite writers of the series, she touches carefully such sensitive issues.
I also love the other story lines. Billy's getting more sick and Brenda's accepting his situations are too real. Very good performances from both Griffiths and Sisto.
I also love Claire and Gabe's relationship, it's something nice found in the ruins. A Private Life is one of the series' highlights. My point to this flawless, beautiful and very special episode is 10/10.