Marriage Masquerade by Barbara McMahon

Pregnant and abandoned, Gemma Green plans to leave her life behind and start over–until her Greek billionaire boss, Nikos Petropoulos, offers her a marriage of convenience to solve both their problems. As they live under the same roof, Gemma’s feelings for Nikos deepen, and she starts to believe he might feel the same. But a visit to Greece uncovers unexpected complications, leaving her questioning their future. Can their convenient arrangement turn into the love of a lifetime?