The Cupid by Kylar Wilde

Anthony spends most of his professional life in secret. Not that it’s anything exciting, though. He spends most of his time reading, studying, and visiting his grandmother at her retirement home. All in all, his life is pretty quiet outside of the fact that he works in a hospital.
Until Charles, his grandmother’s long-lost love, moves into the retirement home down the hall and Anthony finds out that his granddaughter, Catherine, works at the same hospital. While they try and reestablish their grandparent’s lost loves, Anthony finds himself falling in love with Catherine.

Will the two of them be able to rekindle their grandparent’s love? And what will happen to them while at it?