How do you console someone whos husband just left them?

i got home from college last night and my step-father wasn’t home, i figured everything was ok, apparently he packed his shit up and left my mom because he’s the biggest asshole on earth. anyways my mom is really relieved because she didn’t want to kick him out but shes still really upset about her financial issues and things like that. I really don’t like to see her upset and she pretty much means more then the world to me so please help.