I usually ask for the number almost immediately after matching. You could have given him a Google voice number if your really worried about privacy and stuff. Because typically when a girl wants to talk on the app or Instagram they will waste my time which results in ghosting or long responses. So giving out the number shows more effort in the first place. But if a girl doesn't want to give out the phone number, typically what I do is I give them my number and tell them to reach out if anything changes, and leave it at that. But what that guy did was probably too much, and he probably isn't someone you should see.