Why do men like to say that their girlfriends are not good?

Because men are eating in the bowl and looking at the pot. After a long time, I feel that my girlfriend is not fresh, and I always feel that other women are beautiful, because every man is a playboy. You can say that you are not a heartless person. This is also the nature of every man. We can't blame them. But many times they just talk about it. It's still you who is really with her. He loves you. So you don't have to worry, it's normal.