Correct

喜新厌旧

/ xǐ xīn yàn jiù / 
Strokes

Definition

lit. to like the new, and hate the old (idiom); fig. enamored with new people (e.g. new girlfriend), bored with the old

Example

Definition

be fond of the new and tired of the old; abandon the old for the new; be fickle in one's affection; reject the old and crave for the new

1
Tā
他
kěnéng
可能
shì
是
xǐxīnyànjiù
喜新厌旧
  
,
yě
也
kěnéng
可能
shì
是
chūyú
出于
hàoqí
好奇
  
。

It might have been due to his habitual fondness for novelty or to his curiosity.