Would you break up with your significant other under these circumstances?

[Willow]

I like this question. There is a subtle hint at a double standard we put on ourselves here. How would I find out they were sending flirty messages/texts short of invading their privacy. Unless the person they were messaging had the nads to tell me about it. Therefore, I can't get mad about them invading my privacy as question 2 suggests, if I was willing to try and find their messages/texts as in scenario 1. I'd be a bit of a hypocrite if I did. It doesn't really even matter to me the depth of the relationship. If it isn't seriou, I'm not really going to care if they flirt and they certainly shouldn't care if I do. In a serious relationship, both would require a serious discussion about a restablishment of trust and boundaries.