She and Caleb wind up in a long-term relationship and are married in the final episode of season 10.

Who does Lou end up with in Heartland?

Carl does deny it but she does not believe him. Lou also begins dating the ranch veterinarian, Scott Cardinal but they later break up. Later the series, Lisa sets Lou up with Peter, an oilman, and eventually, Lou and Peter get married, have their daughter Katie and later officially adopt another daughter, Georgie.

Who does Caleb end up marrying in Heartland?

Does Caleb and Cass have a baby? Caleb proposes and Cassandra says yes. They get married at the end of season 10. In the Season 13 episode The Art of Trust, Cassandra reveals to Caleb she is pregnant after the couple had endured fertility issues during Season 12.