If I told her, I’d destroy their relationship and probably my relationship with my brother, but if I stayed quiet, I’d be letting her live a lie. So I did nothing for about 24 hours. But then it got worse. The next day, she came over, literally showing me a gift she bought him, smiling, excited, talking about their future, and I just snapped. I couldn’t sit there and pretend, so I told her everything. I showed her the messages—all of them.