Boy meets girl

Boy meets girl
Day one
they sing: I love you, you love me, I love all your family.....la la de de da da da..........laaaaa
Day one hundred
they sing:I hate you, you hate me, I hate all your family...diu diu de de da da da......diuuuu
&
Boy says: Women are nothing but trouble
then
Girl says: Men are nothing but selfish
I
hate
u
love
me
diu
la
la
aaaa