your friend is workin leh, maybe he needs money badly (family
stuff, etc),
or perhaps like what you said, wants to forget somebody ....
he's so much better than those 20++ still never go work that kind
lo.
however at times tell him to give himself a break, because his
schedule like so pack like that ....
he doesnt want to hangout after work is because he's too use to
this routine or is he already like that before he started goin to
work ? the type that dont like to go out ?