Quentin jumps a little too- more because Nina shrieks, honestly, but also in relief- it would have been horrible, if he'd made her go through all that just to find out she couldn't- and then he yells in joy on her behalf, pleased and proud, smile stretching impossibly wide.

"Now- you may actually feel a little faint in a minute-"

He'd basically blacked out on the examining room floor, after his first display of magical potential. Maybe it's easier when it isn't a dam bursting, like his was, but then again, likely no.