BF GF convo..

GF: babe.. do you love me?.

BF: yes.. i do love you..

GF: y do you love me?..

BF: hmmm... i hav no reasons.. i jst felt it..

GF: no.. give me reasons..

BF: hmm.. ok. B'coz ur caring, pretty and adorable... 

GF:  (looks satisfied on what his bf said..) 

One day.. the girl got sick and became ugly...

GF: babe.. do u still love me?..

BF: Now that u are not pretty and adorable. Do i have a reasons to love you?..

GF: start to cry.. 

BF: (hug her tightly...) now u know why love doesn't need a reason..