KYH - I am sorry. It's always hard to watch the impact of this on the kids.
I don't really have any advice except to keep showering them with love and affection.
Over time they will learn they can lean on you in hard times. Keep being their rock.
Me 41, H 47, M 15 yrs, S11, S13 BD 1: 11/4/14 we work on it; really I pretzel myself BD 2: 3/31/15 H goes down to "dorm room" 8/15: H back to MBR 10/15: H back in dorm room 1/18: H files, now divorced