It might not be illigal but it's very disrespectful. There are websites where people share these photos, I would want to know that the photos were not being passed around. Not saying he is but he seems to have a blurred line of boundaries. Pretty sure if you want to take nude photos of your partner you should get permisssion. I would not want to be with someone who did not respect me enough to let me decide for myself.

If it bothers you, which it seems to definatly talk to him about it. No your not exagerating, I would be pretty creeped out if my bf was doing this and then keeping it secret.