<span>In Japan today people still feel a strong connection with the samurai.</span>
None of these words are underlined.
When you say that someone has lost his head over something it means they have an obsession towards that thing. Liking something too much is a form of obsession. So the feelings projected by Aunt Agatha is a concern that Gussie likes America too much.
An example:-
A murder done by someone is a punishable offence
