He became 'morose' and withdrawn and would not talk to anyone.
gazing/staring 'morosely' at the sad scene
“I lost,” she said 'morosely'.
(..) he was just on my mind. Your mother loved your father very much. I think he just worked too hard. Was he, uh, morose? I mean... What I remember most was that his manner was so slight. You could spend time in a room (..)1997 The Game