You're forgetting the fact that she's already admitted having feelings for another guy... The fact that shes capable of that while with him, says ALOT about her. Call me crazy but when in a relationship I draw a line that is never to be crossed. Not for any reason can it be crossed, even an old flame. And the only time that line is crossed is well....never...aside the fact it's wrong and changes the way people think for the rest of their life

Think about what she'd to do you... lorena bobbit ring any bells
I know for a fact if someone two-timed me I'd be out to ruin them and who they did it with, maybe not physically (to her) but in some way I will change the course of their life - sorry but getting even is completely neccessary, helps you sleep at night