I think it's ok to trust until the trust is violated... then THATS IT GAME OVER PERIOD.
It's funny...I used to feel the same as the above.
But with age, for example, if my wife cheated on me...I'd be hurt, upset (mad as hell really), etc., but ultimately, I'd want to work it out. My
biggest thing is that I'd wonder why she didn't feel she could talk to me about whatever it was that caused her to do that.
Luckily, she hasn't, and I don't think, ever would (and I haven't on her, for the record, either)...but I know there is one problem we have, that
is difficult to discuss, because it always makes her feel bad, so neither of us want to talk about it...but as time goes on, it becomes more of an
issue.
I love her enough to get past it though...and enough for me to resist temptations...and she puts up with my faults...
Still, if either of us strayed, I'd hope we have the strength to work it out.