In this episode, Todd, who is usually attracted to women, develops a crush on the male nurse, Doug. However, it's more of a goofy and lighthearted infatuation rather than a full-blown romantic pursuit.
He constantly tries to impress Doug with his (limited) medical knowledge and tries to make him laugh with his often crude jokes.
While Doug is amused by Todd's antics, he never reciprocates his feelings. This highlights the absurdity of Todd's newfound interest and adds to the comedic nature of the episode.