COLEEN If there was one thing I knew for certain, it was that Mark and Hayden had never truly been alone together. Sure, Hayden had stopped by our apartment plenty of times to pick me up, or to drop something off, but those visits were quick. The kind of visits where Mark shouted a sarcastic remark from the couch and Hayden tossed back a one-liner before I dragged him out the door. In fact, the only time Hayden had spent the night in my room was when I told him about my mom calling and he was there for me while I called my dad. But today was different. “Remind me why this is happening again?” I asked as we walked toward the coffee shop on the corner of campus. “Because Mark texted me,” Hayden said with a half-smile, “and said, and I quote, ‘if you’re going to steal my best friend al

