A/N:

"I'm forever yours, Faithfully"

Finn promised Rachel the day of sectionals; the first time either of them said I love you. Finn promised a lot of things to Rachel. He promised to always be there for her, to always take care of her, to love her until the end of time, and to one day soon make her his wife. But that all changed...
Rachel moved to New York where she met her new beau, Brody, leaving Finn broken-hearted back home in Lima. Things are going well until Rachel comes home to Lima Ohio for Mr. Shue's wedding. Finn and Rachel mistakenly get caught up in a nostalgic night of love and lust. Little does Rachel know, that, that one night will change her life forever.