buffy and spike are in a good, healthy relationship in season 7. giles thinks spike is a bad influence on her. he tells buffy to choose the mission or spike. she chooses the mission while spike is out with andrew. he comes back, she tells him, he storms out. later she comes to her senses and goes out and finds him. know the fic?

I updated your title to give people more info. This may help find it faster.