Stock tips remind me of an old saying: If you told him to jump off a bridge, would he?
Shame on him for holding his own decision against you. I can see where they have the right to be upset with you for a little bit, but they need to get over it.
I hope all works out for you. Let it be a valuable lesson to yourself also. Patience is the key here. That has been driven home since day one.. If you plan to bring others in, make sure they have it also.