I've said it before and I'll say it again.
LET IT GO, CLARE!!!
Ah no, if it's true that's a shame about Keller and Nicole.
(don't care much for the rest)
She was so good to give him another shot but if he did that again then I'm on her side. That's all she could do. He should have known she's no fool and wouldn't put up with much more, regardless of how they felt about each other.
I really hope he's getting some help.
I have the feeling there will always be the 'what if's' with them.