Why?

I am puzzled. Why does that particular someone insist of coming over to our house all the time? Why does he want to have lunch here when he can have it with his entourage? Why must he cook in our kitchen when he has his own kitchen? Why must he always intrude on our private lives? Why must he be so inconsiderate? Why must he talk so much? Why must he be Mr Know-It-All? Why? Why? Why?