Everyone's Heart... or just mine

The heart,
It does amazing wonders,
That can make you feel happy and one moment,
And at then shattered and ripped,
It has special powers unlike no other,
To care and cherish someone for only one reason,
And hate them for one,
You have butterflies of nervousness,
And rumbles of anger,
So what part do we listen to?
The one that says go ahead and get hurt,
Or stress over those feelings you have for that one person,
Who just maybe,
Might actually care about you,