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]
(..) Has someone tamed this monster? This is Roxanne Ritchi cautiously optimistic, but pleasantly confused. Well you seem in a very good mood tonight, sir. Huh, how long is this going to take me? Just a few alterations, sir. And I'll be done with your most terrifying cape yet. I'm calling it, Black (..)2010 Megamind