Why are lovers getting fatter and women getting thinner? Is it because of the birthdays of both parties?

Because men like each other, women give the rest to men, and men are willing to eat the rest. Women love men, so they like them even if they are fat. Women lose weight because they all spend money on playing, buying lipstick and buying a group. They want to become more and more beautiful, and their boyfriends like them, so they will lose weight and become exquisite.