When you love someone, you care a lot about them. You spend all your heart to take care of them because they mean everything to you.
And you also think that you are very important to them because they also love and take care of you. And you think that they also need you just like how you need them in this life.
And one day, they are not friendly with you anymore. You realize that you do not mean so much to them, at least not so much as you’ve expected. That’s the worst day in your life.
It turns out that everything you keep in mind was just imagination. They did not cherish you that much, they even don’t love you as you thought.
You will realize how stupid you are to love and take care of them too much. You look like an idiot because you’ve kept giving but not receiving anything from them.