The Celtic Vixen. Swords and Roses - 2 books, #2

Being a matchmaking ghost isn't easy, especially when you're tasked with getting your widow, a warrior woman, together with a brooding, hardened knight.who both care more about war than love. Nesta's family urges the fiery, middle-aged widow to get a new husband to protect the villa, but she can take care of the villa herself. So, Instead, she grabs her deceased husband's longsword and joins the 15-year-old war leader, Arthur, to battle Saxons.
There she meets the dark warrior, Ulfin. Ulfin is Arthur's champion. And, so skilled in hand-to-hand combat, he has never lost a fight.  However, he has never fought love before. With absolutely no encouragement from the two of them, an attraction ignites between Nesta and Ulfin. Unknown to Nesta, Ulfin is haunted by the matchmaker ghost of her deceased husband. Can this ghost fan the flame of love so hot that even this incredibly stubborn and reluctant-to-love hero and heroine can't ignore it? Though skilled at guarding a kingdom with their swords, will guarding their hearts prove to be a losing battle for them both?In this second book in the Swords and Roses Duology, the sequel to The Celtic Fox, Ulfin and Nesta are familiar with swords but have to get reacquainted with roses.
A Later in Life Romance - Friends to Lovers - Hero and Heroine are over 40