The bane of the fallen angel

I used to be happy in heaven, I was important, I was the favorite. But I made the worst mistake, the worst stupid mistake: I fell in love.

It felt weird, as an angel I'm not supposed to have so impure feelings, but what can I say? She was out of the idea that I had about humans.

She was almost an angel, almost close to be perfect.

And she was, but not in the way that is allowed. And that's way I was banished from the clouds, sended to earth to protect the girl I love.

Yes, I know, it sounds pretty good. But is not, not at all.

Cause my sentence is to be her protector, be always close to her but never can do anything to let her know that I exist.

I can't talk to her.
I can't let her see me.

But I'm the fallen for one reason, I don't like following the rules.