It's hard to relate to someone who has such wild/extreme 'mood swings'. [=someone whose mood changes very quickly]
She turned down the lights and lit a candle to create a more romantic 'mood'. [='atmosphere']
I'm sorry. I'm just not 'in the mood to talk'. [=I do not want to talk to anyone right now]
(..) Cue graphic The Weekend Report with Aaron Altman Go, Aaron Good evening In mood and language better suited to an espionage novel than the delicate world of the Western alliance the British foreign secretary today pounced (..)1987 Broadcast News
(..) Let's turn on the news Come on! Sex, tears, this must be the news Sorry I'm in a pissy mood What's wrong with it? Nothing You blew the lid off nooky - Oh! - Oh! (..)1987 Broadcast News