Callista Gingrich was not an ordinary run-of-the-mill adulteress; she acknowledges a six-year affair with a married man who himself led a very public life of sexual licentiousness. 
The fact that Stefanini's homosexuality was well-known suggests only that he was not in the closet; inferences beyond that, in the absence of evidence, are unfounded. Moreover, there is no evidence that he committed adultery, that he encouraged anyone else to commit adultery, or that he broke up any families.  
Your writing on issues related to homosexuals and homosexuality often seems incoherent; I think that's because you work backwards from your antipathy for them.