E, It depends upon what they are referring to. If it's about your h, there's nothing you can do. They could stage an intervention, but he has to be willing to go in for medical treatment. By law in many states, when the spouse who is having issues is living separately from the wife/husband, there is nothing you can do unless he's is a "threat" to himself/herself or is in the process of harming himself/herself.
If the siutation is something going on w/them, I would stay clear of the mess. You have enough drama in your life right now. You have enough to deal w/when it comes to your h. Yes, you can stay in touch, but do not share w/them anything that is going on between you and your h. Blood is thicker than water...tread lightly.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.