I was in exactly the same predicament. So I had to sort of give up mtbing for a while. Then mr bunnyhop realised that as an ex – BMXer he might as well ‘If you can’t beat them, join them’. So a grand later and after much huffing and puffing (he wasn’t bike fit in those days) he suddenly got uber hooked. He now gives me hints and tips and luckily we ride loads together, without too much pressure. Then if he wants a blast type ride, then he goes out with friends ( you :-))
Hopefully this will happen to mr No_Discerning_taste.
You never know, you may even get asked for bits of advice now and then, just ride together and let him lead with a good gap, so no pressure.
Can’t wait for a picture of his new bike.
Oh and cake ^^^