In either case, when expectations are violated, the wrongdoer will have to account for his behavior.
As I wrote in Finally Out: Letting Go of Living Straight, I know something about breaking rules.
Infidelity occurs in the context of both heterosexual and same-sex relationships, although expectations may be different.
There was no other way to explain what I was feeling.
Until shortly before I came out to my wife, she had no idea about my conflicts about sexual orientation.
There's a story Marie de Hennezel likes to tell about a 99-year-old woman, a resident of a small French retirement village, who would regularly harm herself by masturbating with whatever she could get her hands on (including, sometimes, a hairbrush).
The resident, so the story goes, was frequently hospitalised until staff bought her a vibrator with which she could safely pleasure herself.