Price is attractive, which means that no matter how sexy and good you look, there will always be risks of a woman seducing him and snatching him away from you. And that's when you started your plan...
He drank and ate things different than you, as a militar, he became so accustomed to maintaining a balanced diet. You started by adding sugar, more portions or extra things to his plate. It was a small thing, but it slowly began to take its toll, as his appetite grew and he no longer seemed to get full fast as before. Then you started preparing delicious things so the aroma would attract him. Everything went according to plan; you persuaded him and got him to eat everything you cooked.
Your plan was to fatten him up, make him attractive to you, but not to anyone else... that way, he wouldn't be able to have a lover or be with a woman other than you.