Sorry about the typos above. I guess I can't type when I'm worked up!
I found the thread you referred to and it was interesting. I guess I can rest assured that there will be no apology forthcoming from xh. Given his family issues he is going to spin forever and never face his demons or reflect on what he has done.
One of the comments unrelated to mothers or parents that stood out was someone mentioned that their estranged spouse had travelled a lot since their split.
I found that interesting because my xh also took two trips with OW within six months -- both of which he charged to his credit card. We only ever went on a vacation if I planned it, made all of the arrangements, and I always paid my own way.