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]
(..) Okay, what? How many of those do you have? Oh, I got different iPods for different days and moods. Oh. And you're in a pink and glittery mood. I am now. What is your name? Baby. Wait, what? Your name's Baby? (..)2017 Baby Driver