The relationship between Cui Si and Murphy is quite delicate at the moment.
Murphy has made his intentions clear, hoping to have a romantic relationship with Cui Si, but she seems to keep him at arm's length.
She isn't purposefully playing hard-to-get, she simply worries that her tumultuous past could cause trouble for Murphy. Despite the fact their blood pact was long dissolved, she can't help but act protectively towards him.
Despite these worries, Cui Si does not seem to mind Murphy's occasional overly affection gestures.
As she has said herself, she does not dislike him. Given that she has not firmly rejected Murphy's advances, certain boundaries are implicitly acceptable.
In the office, Cui Si lets Murphy mode his arms around her slender waist. Murphy enjoys her scent - a mixture of alcohol and midnight gratification. His hands behave decently, not wandering anywhere inappropriate, finding a delicate balance between respectability and indecency.
