Because the rest of us think you're an idiot.
Don’t listen to all the bad things people are saying about you. And they are saying bad things about you. They’re pretty funny, too! Especially the one about how nobody will ever be desperate enough to love you. Anyway, don’t listen to them.
Just because we accept you as you are doesn't mean we've abandoned hope you'll improve.
If you require additional affirmation, get a puppy. The rest of us are trying to work.