It isn't wrong, karmgirl, in fact I think it is a really strong attitude to have....if that really is how you feel, rather than you telling yourself that is how you feel, in order to bury any unpleasant or upsetting feelings, as that would be just as unhealthy as having the upsetting feelings in the first place. I've made that sound really complicated, haven't I?!
Anyway I speak from experience I've been where you've been but still haven't dealt with my feelings about what happened. I can't ever forget which makes it hard, but it sounds to me like you are a stronger person than me.