What happens to a unicorn that loses its innocence?

It becomes a mad raging bucking un-tameable horse, that can only be calmed by a virgin, the unicorn retains all of its unicorn-intellegence, and doesn't act like other horses, and is still vary pretty and muscular, although no where near as beautiful as when it was a unicorn. The unicorn-turnd horse will try to seek out its thing that tainted it and will try to murder it. It is incredibly dangerous and like a monster. It can ether be mad at loosing its horn and unicorn-ness and try to find or get it back (probably threw black magic) or the same but gives up on ever becoming a unicorn again and will go on wild rampages and crusades against things (or things in the place) similar that stole its innocence. There is a way for a person with a pure hart to restore it to its unicorn-ness/form and purify the horses dark turned hart, but I don't know how.

Just show one a p**n site and see what happens.

They turn into these vampire things are turn red and black and shoot lasers from their eyes and have bat wings. They can kill people with their horn.