In Little House on the Prairie, during season 1 episode Doctor’s Lady, Harriet Oleson’s niece Kate decides to visit Walnut Grove. During this visit, Doc Baker falls in love with Kate. But during the episode, Doc Baker feels that he is too old for Kate and his much older age compared to her will prevent her from living the life she had planned. So at the end of the episode, he lets Kate go.
Throughout the rest of the episodes of the series on the show, Doc Baker does not have another serious relationship with anyone else. So he ends up not getting married for the entire series of the show, even though he said he’s in Walnut Grove until the very last episode.
Many fans regret the fact that Doc Baker did not end up with Kate, especially since he did not find another true love in his life.