Men do enjoy being in relationships (when it’s with the right woman, that is), but at the same time, most men have a huge fear of losing their freedom and getting trapped in a situation with a woman who sucks them dry and leaves them feeling drained and uninspired. A man will feel “free” in a relationship when he’s with a woman who is whole and fulfilled in her life and doesn’t rely on the relationship to meet her every need.
It's like with dogs or children — you stick to your guns and you politely, patiently repeat the boundaries until they respect them. He gets it or he gets lost. Period. If you truly start to follow this theory, he'll feel how serious you are about being respected, and if he's at all serious about you, he'll get aboard the good boy train very fast. He'll know that if he doesn't, he'll be left at the station!