I’ll take your word for it. I know little about the legend except that Tristan and Isolde were carrying on an adulterous affair.
Yes. I forget the name of it, but someone wrote a whole book on the literary tradition of what Wagner, who did the opera version of the story, calls “Liebestod,” or love-death. A strange fascination in western literature for illicit, romantic love leading to death and transfiguration.
A curious business.