The Seafaring Rogue by Sky Purington

Left for dead on the shores of Scotland, Fraser MacLomain falls in love with the healer who saves him. Yet Elspeth MacLauchlin has dark secrets – hidden truths rooted in a century old family feud. A vendetta is soon resurrected by vicious enemies who steal her away during a late night pirate attack.
Bent on saving her and reaping revenge, Fraser embraces a life of piracy. Cutthroat, out for blood, he relentlessly pursues his nemesis long after rumors of Elspeth’s death and long after he abandons love for bitterness. But even a hardened heart can be thawed, as he soon discovers when catching his foe and being reunited with his love.