"You have been investigating behind the scenes..." Hallie Morgan looked at him in surprise. "Why didn't you tell me?"
Dylan Collins said, "I didn't want to tell you before I was sure. If it turned out not to be true, wouldn't you be disappointed?"
I see...
Hallie thought, this guy seems quite straight-forward, yet he is thoughtful in his actions.
Indeed, she had already experienced disappointment once before, so she was somewhat hesitant to believe it again.
What if it was a false alarm again?
"So your investigation has revealed that they might actually be related?"
