operatic

1) of or relating to opera.

2) melodrama so ridiculous that it requires opera music for heightened effect.

Last night's weigh-in on the Biggest Loser was such an operatic moment.

"OMG, I can't find my purple earrings that match my shoes. This party is going to be a disaster!"
"Baby, now you are just being operatic."
"YOU ARE SO UNSUPPORTIVE! YOU NEVER LOVED ME!..."