There is no honor in leaving your spouse of years because you want to chase something that attracts you more. It doesn't matter what gender that something is. The choice is selfish and dishonorable.
And it's morally repugnant for society to cheer when sexual identity is used as an excuse for dishonorable choices like this. Would they cheer as loudly if a man left his wife for another woman? Then they shouldn't cheer when he leaves her for men either. A commitment is a commitment, and a betrayal is a betrayal.
topic: sexual identity