"No. We're...friends."
He wasn't sure if that was right, but it was true. His uncertainty was painfully obvious. He'd like to think there might be something more...but he didn't want to assume.
Other options:
no subject
"No. We're...friends."
He wasn't sure if that was right, but it was true. His uncertainty was painfully obvious. He'd like to think there might be something more...but he didn't want to assume.