@hawkeye10,
I don't think Debra is casting Greg as a ****; however, she is pointing out that he is untrustworthy as a marriage partner. Whatever the cause of the breakdown between them, and even they might not know as they only went to bereavement counselling together, not marriage counselling, he stopped communicating with her and then decided his best option was to leave without any discussion. It is not a good situation for any of the three involved, as they all work at the same place. I don't know what the young woman is about, but I feel for her, too, because she's getting involved with someone who clearly isn't whole and healthy, emotionally. She is 10 years his junior and is involved in a messy situation. She will be cast as the Other Woman by some, maybe even an outcast to those sympathetic with Denise, and that's really unfortunate. Apparently she has backed off from her "thing" with Greg, and I hope for her sake that she has.
They are all social workers, which makes this ironic. Denise will be viewed by some as the "victim", a term I detest, when she is not really a victim. She had a hand in this breakdown, too, somewhere, at some point.
Anyway, I'm not interested in assigning blame - what is the point of that? We all do what we need to do, so if Greg decided he needed to do this, then the fact is Denise is on her own and must learn to deal with it. Yes, it's an ugly shock, but I wonder if, a few months from now, she doesn't start talking about the signs she didn't or wouldn't see. She has the chance to learn a lot about herself and her part in all this. I hope she capitalizes on it.
That sounds so cold, perhaps, but I see it more as pragmatic and rational. Life deals you some nasty cards; all we can do is play them the best we can and not succumb to this victim mentality. Which, I'm sure, she won't.