it was a huge dream project for him, as well, and he was thrilled every single second of production, so he wouldn't have minded any fangirling at all - he prob would have been a little flustered and bewildered by it, but thrilled to work with her since he considers her to be such a talent. i'd love if they were friends, i can see him being slightly terrified (a musical??? what was he thinking) so leaning on her through that, and bonding over their mutual excitement