Easy question to answer.
I think cheating is ANYTHING that requires lying to your partner.
(or withholding the truth)
This doesn't include "don't ask don't tell" agreements, because they are agreed on before.


Leagal eaglely,

WW

__________________
"I wondered, am I a lesbian, am I straight, or bisexual? Then I realized that I am just a slut.
So where's MY parade?"

---Margaret Cho