Yeng/Yang

You could either fix...
Or break me into pieces.
Self-possessed but sometimes...
 On a very bad weather,
You're like a raging sea. You keep me sane...
And give me peace then a minute,
You drives me insane.
 You're like a stubborn child,
Messing up the rules.
Unforgiving grown up,
Whenever I broke your laws.
A huggable cat with purring sounds,
(with a nose as wet as ice.)
But when pissed off...
You could roar like a lion,
With threatening claws.
 You could be my sweetest dream,
But the worst nightmare if we have fight.
You're my health, But you could also my diseased.
And with all these flaws...
 I love you still and more, 'Coz you're the yeng and yang...
That balance my world.