How come bullies have nothing better to do with their lives than to har you?

I have online bullies because I mistakenly told everyone online that I'm marrying a girl from vietnam who my mother has asked my to introduced me to since I couldn't get a vietnamese girlfriend in the states. Some people decided to har me by saying you're getting a mail order bride, I hope she leaves you and some say true love is a beautiful thing, even when it's mail order. But someone has said this thing that strongly insulted me by saying, You wanna keep her ?? Then wear you red vietnamese dress for her, she will dig it. How come people har me like this ???