After keeping relatively quiet for the past two weeks, TechCrunch founder and Silicon Valley kingmaker Mike Arrington issued an exhaustive rebuttal on his blog yesterday to his ex-girlfriend Jenn Allen's public claims that he raped and physically abused her. Arrington's pushback against Allen comes as Gawker has uncovered more detail on allegations that he assaulted another ex-girlfriend, Meghan Asha—including corroboration from Asha's friend and former partner, Julia Allison.