Most Helpful Guy
So, she flirted with your friend, you spoke up, she flipped out, and YOU are the one sleeping on the couch? While she sleeps in a bed you most likely paid for, in a house you most likely paid for (or paid the majority of). And she's Jilling off thinking about your friend.
Divorce this bitch. You fucked up by getting married in the first place, but it's not too late to correct it. I guarantee you she's already fucking him, and their conversation was just them thinking they are clever by rubbing your nose in it with you RIGHT THERE to witness it.