I have no personal favourite but got these from emails from friends.
"You came from no where, and in no time got close... not to me, but to my heart."
"I love you not because I need you, BUT I need you because I love you."
"When two friends fall in love, they learn they are meant for each other. When they fall out of love, they realize they want to keep each other forever."
"There are so many stars in the sky, only some noticed. Among those you choose to ignore is the one which was willing to shine for you forever even if your glance remained elsewhere."