person A: He seams fine when I talk with him but I know he is not. H has had a problem with substance abuse in the past 
person B: That's really rough. Do you think he may have relapsed?
person A: Well My stepmom just died last week and I am concerned for him greatly 
person B: I would be too. Going through something like that can take a toll on anyone_comma_ and makes it hard to cope with everyday life. I hope he gets the help he needs.