熱ねつが冷さめる

expression, ichidan verb

lose interest; cool down; grow less enthusiastic

Metaphorical expression: one's passion or enthusiasm cools off, like a fever subsiding. Often used for hobbies, projects, or relationships.

• 最さい初しょは夢む中ちゅうだったけど、最さい近きん熱ねつが冷さめてきた。

  I was obsessed at first, but lately my enthusiasm has cooled.

• 彼かの女じょへの熱ねつが冷さめるまで時じ間かんがかかった。

  It took time for my feelings for her to fade.