Liàn'ài chūqī de xīnxiāngǎn huì suízhe shíjiān mànman xiāotuì.
The initial excitement of a new relationship gradually fades with time.
Tips
usage
新鲜感 is commonly used when discussing relationships, experiences, or products, the sense of newness that makes something exciting. When it fades, people say 新鲜感消退了 (the novelty has worn off).
