Crimson Vows by Wendy Owens

Gia, spurned by Vincent King, finds herself thrust into a world brimming with conflict and dangerous liaisons. Her heart still stinging from Vincent’s betrayal, Gia is forced to consider a strategic marriage to Vincent’s cousin and new second-in-command, Marco.
Marco, secretly enamored with Gia from a distance, is determined to win her heart. He promises Gia her freedom should she choose not to marry him. But Gia is skeptical, unable to shake the feeling of being merely a pawn.
As Gia reluctantly agrees to give Marco a chance, she encounters his friends, Dante and Nico. They introduce her to a world where she can assert control over her destiny and desires. This unexpected turn ignites a fierce desire in Gia to break free from the chains of expectation and explore her own path in love and power.