It should not really matter if she was his long-term girlfriend or a one-night stand, allegations of rape, sexual assault and threats to kill have to be taken seriously.
Yes there will be many young women who will hook up with the young, rich and famous and go along for the ride (no pun intended) but I do not think that any of them will be looking to be raped, sexually assaulted or become victims of domestic abuse.
Apparently he has been released on bail pending further enquiries. Things look to have changed since the initial reports on Sunday.