About a guy and girl that were both crying at the wedding cause they had been in love with the groom and after something happens to the girls apartment she moves in with the guy and as time passes they fall in love even though he used to be gay.

OMG!!! I know this....man...its on the tip of my mind....I know the story...yet not the name... if I think of it i'll let ya kno

it's probably Anta Nante Okotowari. i'm not sure if the guy was gay though...

"There is no remedy for love but to love more." -Henry David Thoreau

Koi no Arashi

I've never read it but the summary sounds the same. Good luck!

"I've seen a look in dogs' eyes, a quickly vanishing look of amazed contempt, and I am convinced that basically dogs think humans are nuts." -John Steinbeck

it was koi no arashi thank you very much!!