yes , our world is full of evil people , they doesn't resbect the feelings of any one.

Oh...tear is a reaction which happen because of hurtful and painful feeling so you will find some people keep their sadness and anger in their heart and others try to express their sadness by tears. And about love ... I think Love still exists but true Love became no longer exists. May be you will find true love one day and feel its happiness but avoid its pains.