I love this strip, mainly because it shows Faye getting outside of her own head, and aligning her emotions with someone else's behaviour in a healthy way. Not only did she hold off drinking during a very emotional mess for her, but she woke up the next day and dealt with last nights happenings by relating to other people: With Marten by being honest but "light", with Claire by being a darn sight more polite than she (Faye) would've been a while ago, and with Bubbles by truly expressing gratitude.
I've always been a bit of a cheerleader for Faye in my own head, for reasons I can't pinpoint (Faye's almost nothing like me IRL), but it's often very difficult to keep liking her due to her needless aggression, general rudeness, and sometime selfishness to the point where she can't see past her own nose. This strip makes me happy because it shows Faye as someone who's not only capable of battling demons, but someone who genuinely understands the part that her friend played in her battle. And rather than marching in, stoic and cold, she's actually expressing directly to that friend that she's grateful. I think it's a huge step forward for her.
Obviously it's not going to be sunshine and roses from here, but I feel like the latest comic shows that Faye is truly getting somewhere.