Actually, You Gave Your Love was written separately, but ended up being used because the studio didn't like Wanda, which is written from the perspective of Angus. Part of why they didn't use it is because in the original cut of the film, it was established that the character's father was gay and that his mother was a trucker. However, the movie was recut to have the mother dead and no mention of the father's homosexuality was made.
Actually, You Gave Your Love was written separately, but ended up being used because the studio didn't like Wanda, which is written from the perspective of Angus. Part of why they didn't use it is because in the original cut of the film, it was established that the character's father was gay and that his mother was a trucker. However, the movie was recut to have the mother dead and no mention of the father's homosexuality was made.