What does "rotten peach blossom" mean?

Rotten peach blossom, a Chinese word, pinyin is làntáohua, which refers to a person who is inappropriate, unreliable or disdainful of pursuing or pestering.

Rotten peach blossom is one of the eight-character peach blossoms. For a single person, the other person's condition does not meet your expectations, but it is dead for you. No matter how you refuse, it is invalid.

Rotten peach blossoms also refer to improper feelings between men and women, such as extramarital affairs, unfeeling sexual partners, promiscuity, stepping on several boats, not knowing each other every time, being eager to blindly invest in feelings, and failing every time without knowing the reasons. Most of them are fruitless peach blossoms, which belong to the emotional mode of good first and bad later.