Ack...opinions? Did I do something wrong?

Because you're young. Sorry to say, but at our age, relationships are stupid and if guys don't get what they want, they turn tail and run. You don't need someone around who breaks up with you because you won't expose yourself to them, it took me two years to get that through my head and I certainly hope it doesn't take you that long. You should not have sent him pictures, at all, you did the right thing.