sentences:  Martín breaks off his relationship with Esperanza when he sees her goodbye kiss with Quique, as he realizes that she was lying to him.After the breakup with Esperanza, Martín resumes his romance with Constanza and eventually proposes marriage to her, in order to improve his chances of winning custody of the three siblings.The judge, who thought that Esperanza was a bad influence on the children, gives the adoption to Constanza instead of Martín, forcing him to marry her.