Claire Lorrimer 
Faithful Heart 

Harriet was very young when her ambitious, unscrupulous mother succeeded in parting her from Paul, the impecunious medical student Harriet loved. So successfully was Harriet convinced that Paul did not return her deep-felt love, that it was not long before she turned in her loneliness to the eligible Tony, it is not long before Harriet finds herself fighting against her disillusionment and doing her best to remain loyal to her vows. But by chance Paul comes back into her life just at the point at which she is most alone and in need of a friend.