It's not right. It's not just. It's not modern nor do I condone it, but a sex scandal of the straight adult kind, even of the same-sex adult kind, has never hurt a man. Not really. Not truly. Not deep down in the soul of society.
A woman? Yes. Kristen Stewart may as well have pooped on the Pope's hat when news broke she had cheated on her boyfriend, fellow Twilight vampire Robert Pattinson. She was vilified, trolled, loathed and quite possibly asked to sew a scarlet "A" on all her clothes, by press and fans alike.
It was as though she was the first person in Hollywood to cheat. She was not, but may have been the first young woman to cheat and be outed for it, in some time. Has it ruined her career? No. Is she treated differently? Yes. She's now also openly out as a lesbian or bisexual or sexually fluid, but in summary she dates chicks now.
Are men treated the same way? Well, Tiger Woods was also vilified but he had two things working against him. He was black in a still very racist world that only excused his ethnicity because he was great at a white man's sport, and secondly he chose to sleep with countless women in North America and beyond.
Cheating on your wife with strippers and porn stars never reads well. Dreadful for Tiger, and not awesomely awesome for Charlie Sheen either. It could be argued that Charlie seemed to be applauded a little more for his shenanigans, but the porn-star thing again didn't particularly endear him to the average fan.