And Then Us by Hunter J. Keane

Nick and Logan finally found their way back to each other after five years apart. They aren’t just enemies-turned-lovers anymore. They are husband and wife.
As they start building their new life together, Logan must learn to handle the pressure of being married to a man in the public eye. It isn’t long before she realizes that Nick isn’t the only one drawing the wrong kind of attention. After Logan receives a foreboding letter revealing that she has a stalker, Nick is determined to keep her safe.
Will he find the person threatening Logan before it’s too late?