Giggs is a scumbag, and after all the revelations about his antics with his sister in law, its probably fair to say that most right minded people would come to a similar conclusion.
What did this girl think when she got involved with him? That he was by some miracle going to change into a decent bloke???
That said, there can never be any excuses for some man hitting a woman, if hes found guilty of that then he deserves everything he gets for being that sort of shit house and a coward.