Correct

变心肠

/ biàn xīn cháng /
Strokes
https://i.cchatty2.com/filters:format(webp)/fit-in/684x0/img/202102/变心肠-Chinese-idioms-Cchatty-b682adca-e83b-4e77-88d5-0350cadc62b6-1612776614.jpg

Collocation

1
翻脸无情变心肠
2
不会变心肠
3
担心某人变心肠
4
暴富以后变心肠

Definition

变心肠:

Literally means:

change of heart

Actually means:

It means one ceases to love or be faithful to someone whom he or she used to love. Derogatory.

改变原有的爱或忠诚。指男女之间的爱情出了问题。具有贬义色彩。

Example

Used as predicate or object. (作谓语、宾语)
1
xiǎng
  
,
yàoshi
要是
yīnwèi
因为
diǎn
xiǎoshì
小事
ér
fānliǎn
翻脸
biàn
xīncháng
心肠
  
,
zhènghǎo
正好
shuōmíng
说明
shì
zhíde
值得
自己
ài
de
rén
  

He thought that if she turned her back on a little thing, it just showed that she was not worthy of her love.

2
duì
de
ài
shì
zhēnchéng
真诚
zhuān
专一
de
  
,
不必
dānxīn
担心
chūguó
出国
hòu
以后
huì
biàn
xīncháng
心肠
  

His love for her is sincere and single-hearted, and you needn't worry that he will change his mind when he doesn't go abroad.

3
Yǒuxiē
有些
nánrén
男人
bào
暴富
hòu
以后
jiù
biàn
xīncháng
心肠
  
,
xiē
那些
bāo
èr
nǎi
de
dōu
shì
zhèyàng
这样
ma
  
?

Some men become rich and then change their hearts, those who pack two milks are not all like this?