Can you handle all me now??

I'm used to sleeping alone.
I don't like getting flowers, or chocolates.
I prefer mountain climbing to shopping.
I love cooking for more than one person.
I like dancing alone.
I'm never bored, or boring.
I'd rather sleep in a tent than in a 5*hotel.
There are 2 kinds of music: the one I like and the one I do not despise.
I know how the body functions.
I know how to train your every single muscle.
I've hit, I've never killed.
I do not believe in anything or anyone.
I once loved.