I feel like a stray dog and a stray cat. The world is gray. I think my heart is not bad, but why doesn't anyone love me?

Kindness is what a person must have, but it is not enough to have kindness. You should be frank and broad-minded, so that people around you will be willing to associate with you. But at the same time, you should also pay attention to your self-cultivation, improve your personal quality and broaden your hobbies, so that many people will be willing to be with you, and there will be more positive energy, which will bring relaxation and happiness to friends and colleagues around you. With more relatives and friends, you will feel happy and the world will become better.