She missed her husband's 'companionship' after he died. [=she missed being with her husband]
He had only a dog for 'companionship'. [=his only companion was his dog]
(..) What was his name, the one with the silver smile? Heights, he's attracted to heights. Ask yourself why you seek the companionship of strangers. Ms. Howard, how did you cope with your father's suicide? Kreizler, that's quite enough! (..)2018 TvShow: The Alienist Title: These Bloody Thoughts Season: 1 Episode 4