By Aisha Ali Khan This is a cross-post The announcement by Amir Khan on Twitter that his marriage was over was shocking enough. But then he followed it up with a series of even more bizarre, disturbing and downright scandalous tweets in which he accused his now estranged wife Faryal Makhdoom of not only being a gold digger, but also of cheating on him with a fellow boxer, Anthony Joshua. Khan’s last tweet reads: “Mans (sic) like (Anthony) Joshua can have my left overs” Calling the mother of your child ‘my…