"I didn't know. I couldn't know." She shrugged. "I hadn't really talked to anyone about any of this, and I started to feel bad that my reasons for being with you weren't honest. When I talked to my partner, he confirmed the idea that I needed to tell you."
Jennifer had no idea if Charlie had known Dean wouldn't get mad or not. She wouldn't put it past him to have found out somehow, or been able to deduce it from reading Dean's file.
"If you were in this for something serious, I couldn't let it be built on a bunch of crap. If either of us were, really."