Alpha Theodore's weak mate

Esme Carter had always thought that her life would be set once she found her mate and she would be able to move out of her uncle and aunt’s house. But little did she know that her mate, Alpha Theodore was going to abandon her at the altar and reject her as his mate. “Don’t worry, Sweetheart. You will find your match who will balance your weaknesses and you will balance his weaknesses. Just make sure to never waver and consider another man. You must be the one for him or else he will be ruined for life,” the old man at the mating ritual told Esme. Was it some kind of advice for the troubles that she might face in the future? What kind of trouble? Consider another man? Who is her second chance mate? Was she going to consider her second chance mate? Or would she decide to stay with her first mate?