In the first clip, Jeanette has the upper hand. Nelson is paddling the canoe and sings to impress the girl. In the second clip, the tables have turned. Nelson shows up happily with a girl on each arm while Jeanette is failing to entertain the room. Jeanette can't seem to turn off that operatic voice (which, frankly, is irritating to me).
I have seen one movie of Jeanette without Nelson, but not the other way around. Jeanette was about 40 years old and was supposed to be the mother of some young adult girls. She was beautiful and talented.
I am frustrated by the MacDonald/Eddy movies.