Spellbound (1945)

thanks to IMDB

Constance Petersen: Of course not. People fall in love, as they put it, because they respond to a certain hair coloring or vocal tones or mannerisms that remind them of their parents.
Anthony Edwardes: Or... or... sometimes for no reason at all.
Constance Petersen: That's not the point. The point is that people read about love as one thing and experience it as another. Well, they expect kisses to be like lyrical poems and embraces to be like Shakespearean dramas.
Anthony Edwardes: And when they find out differently, then they get sick and have to be analyzed, eh?
Constance Petersen: Yes, very often.
Anthony Edwardes: Professor, you're suffering from "mogo on the gogo"
Constance Petersen: I beg your pardon!

there was another line that i wasnt able to catch properly from the movie. it was sweet, especially it was before the time they kissed. *sigh!* Love Love Love.