Violent Attacker or Protective Boyfriend?

S8, E9: A boyfriend comes to the aid of his partner who he claims was being physically attacked by their female neighbor; after breaking up the fight, he's shocked when the next day he's arrested, following the female neighbor's allegation that he violently assaulted her; now facing 25 years in prison, it's the boyfriend's word against his neighbor's; who will the Jury believe?