片恨み (かたうらみ) Japanese meaning | KotomoraMeanings
1
noun, noun or participle which takes 'suru', transitive verb
one-sided grudge; unilateral resentment
A grudge held by one party without the other party necessarily being aware or reciprocating. Often implies the resentment is not mutual.
生
上
よく
ない
。
Holding a one-sided grudge is not good for your mental health.