When someone is being, or is making a situation more dramatic and complicated than they or it needs to be. A combination of melodramatic and complicated.
1: Why are you crying?
2: They canceled America's Next Top Model and I just don't know how I'll get through the day now! There's nothing left for me...
1: It's not that bad...
2: No! I'm going to write a letter!!! I'll start a protest!
1: You're so melodracomplicated sometimes.
2: GOD, WHY ARE YOU SO MEAN TO ME?!