Yikes! Well, he might yet win her over, I understand he is quite a charmer
Our dd's teacher was kinda skeptical when we had her moved into k at age 4, but now she just laughs and tells me all about how dd is doing her math better than most of the older kids (knows what the various dot patterns mean on a die without having to count, takes time to lay out all her counting beads in interesting patterns, but still finishes really fast, etc.) So....thankfully we are doing ok (so far!)
Hope she starts to get it for your guy, or you find some other options.