Just read a thread about people not wanting to know if their partner has cheated, with some people saying if it's just a kiss they're not bothered about it etc 
If my OH cheated on me I'd definitely want to know about it so I could ltb because that means he has no respect for me or our relationship. And I'd still be royally pissed and deeply hurt if it was 'just' a kiss.
Is it just me? What do you consider cheating?