To Keep Faith (Heartsong Presents)

is book #160 of the Heartsong Presents line.
==Book Description==
Faith waited for Carter, marquess of Aven, to return from the war against Napoleon and claim her as his bride. A petite beauty and the daughter of an earl, Faith would be a prize catch for any young man, but long ago she gave her heart to Carter. He gave her his ring before he left for war and made her promise to wait for him, a promise Faith has kept.
But when Carter returns, on his arm is the dark, sophisticated beauty, Lady Celeste Altavaras, whom Carter introduces as his fiancée. In that moment, Faith's dreams for the future are shattered.
Is betrayal the only reward she will receive for keeping faith? Surely God has a plan, but where and to whom will Faith turn?
(Description from fictiondb.com)