不甘友情不敢爱情
[bù gān yŏu qíng bù găn ài qíng]
It means someone cannot settle for friendship because what they truly long for is love. However, due to various reasons—such as fear of rejection or destruction—their true feelings remain unconfessed. Instead of confessing feelings, the person stays at arm's length from a loved one and just plays as acquaintances.