[k3mps]

Hey RS, I'm in need of some help.
Long story short, my sister and her husband are going through rough times as he cheated on my sister, and still makes contact with that girl despite numerous warnings and talks between my sister and him.
She is currently here with their 2 year old son to get away from everything for 2 weeks, giving him time to think and come to a conclusion of whether he wants a family or to continue being what he wants to be.
She is strongly considering divorce if they cannot work things out however the husband does not want to divorce, because he grew up with divorced parents.
Although he doesn't want to divorce, he does not seem to want to spend time with his family.

I know this may seem private, but I feel that details should be shared for a more detailed reply.
It kills me to see her go through this and I do not know what to do to comfort her aside from the "things will work out" and "It will be alright" etc.
What can I do to comfort her and help her get through these miserable times.
Please help RS!