What does it mean that "love must be close to delusion and begin to be true, and only when it is fun" in the climax "Nightmare Shadow"?

Romantic people are affectionate, love is not necessarily really talented, but talent must have true feelings. When the emotion is infatuated and can't be independent, it is the true feelings; Talent and noble taste set off, romantic and chic, you only change. This feeling is only true if you are crazy, and it is interesting to prescribe drugs. The last sentence may be understandable, but the next sentence is easier said than done. It always takes effort.