Girl, only one dating maneuver has a higher degree of difficulty than this one— the infamous roommate switch, where you successfully trade in your squeeze for her hotter roommate. The fact that you are already a mere booty call, and not a girlfriend, is a manly statement about the quality of sex with you; namely, sex not worthy of staking a claim. So, from the beginning you are going into this quest from a position of weakness… unless you can raise the stakes.

To do this, you must make him want you more and at the same time make yourself less available. It is time to list your strengths and explore his fantasies, to take him to the edge of nirvana and then delay completion. It is a difficult and dangerous game where the trick is to keep him frustrated but maintaining desire, always a step ahead of anger. It can be a lot of fun and women are specially suited for it. Allow me to wish you the best.

Nestor Presas is a Cuban expatriate with a degree in Social Psychology who has worked mainly as an advocate on behalf of persons labeled as mentally ill. Presas only writes about the things he understands and knows about. Although happy to offer his guidance he still believes that happiness is way too serious to be risked by following anyone else’s advice. So you are welcome to read and ignore what he has to say.