Forever His Girl by Catherine Mann

Second chance sweethearts hiding out from the past.

Air Force pilot Daniel Baker expected surprises when rescuing his orphaned little half-brothers from a foreign embassy under siege. But nothing could have prepared him for the shock of finding his high school sweetheart and former fiancée, Mary Elise McRae, stowed away in the storage container as well.
Mary Elise McRae can’t turn her back on the young half-siblings of her former love, Danny Baker. But her plan to help goes awry. She only wanted to deliver her two young charges to the airfield – not return to the United States. After all, she fled home in the first place to escape her stalker ex-husband.
However, once the military cargo plane touches down, Danny will stop at nothing to protect Mary Elise, even at the risk of his very own heart.