Lord Robert and his bride (The Duke's Brothers #2)
Fiona Miers

Julia is in Weymouth as a companion to her Great-Aunt Arabella. It is there that her cousin, Freddy, arrives unexpectedly and demands his Aunt settle all his gambling debts and makes unwelcome advances on Julia. The two women seek the help of their barrister neighbour, Lord Robert, and it is there Julia finds a true gentleman.
But Freddy will not be put off so easily. He is determined to marry Julia, even if it means he has to ruin her to do it.