Lou and Peter do not get back together on Heartland. Lou moves on with her new boyfriend Mitch and Peter also has new relationships. However, things take an interesting turn in Season 14. ... In the season finale, Lou ends things with Mitch and tells Peter she might still have feelings for him, who does the same.

Do Lou and Peter ever get back together?

As the last sentence of the previous question confirms, Lou and Peter didn't get back together on Heartland season 10, season 11 or even season 12. ... And in season 10 Peter got involved with Lou's business venture, which also brought them together rather than further apart.

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.