Answer: Remind him what he was chasing you for. Show him that just because he’s won over you doesn’t mean he gets to keep you. Instead of groveling and chasing him, turn the tables and make him work to get you back. If you remind him that you can be just fine without him, he’s likely to begin the hunt and chase all over again. [Read: How to keep a guy interested in 30 super sexy ways]
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!