Duncan, 24, denies assaulting her at a flat in Mains Loan, Dundee, on August 7 last year after she threw a two-day-old takeaway meal in the bin.
According to Miss Crowe, Duncan told her: "I don't want a new meal - I wanted that one," before starting to slap her, pin her down with his knees and repeatedly punch her in the face.
"While he was punching my face his dog bit my left ear," she told the jury.Lovely!
Miss Crowe said she and Duncan had enjoyed a "brother-sister relationship" before the alleged attack on August 7.Eeeeewwww! Even lovelier!