Mr. Right Again for Her by Jo Grafford

When you realize your first love is your one-and-only after it’s too late…or is it?

Devlin Cassidy spent the last eight years beating himself up over the girl who got away. He knows he messed up by popping the question too soon, which led them to take a break from their relationship. Now her unexpected return to town has him hoping like crazy for a second chance at love. If only she wasn’t so dead set on pairing off with his next younger brother this time around. It’s as if she’s entirely forgotten his brothers’ rule against dating each other’s exes!
Julia Benson wants to make a name for herself on the rodeo circuit before getting married. However, saying no to her high school sweetheart’s proposal is her one big regret in life. By the time she returns to town, he’s long since moved on. It’s way too bad her heart never got the memo.
While struggling to regain the friendship she once enjoyed as a member of the Cassidy brothers’ inner circle, she finds herself stumbling into the same old mixed signals with Devlin. Surely there’s a limit on how many times they can botch things up between them before they finally get it right!