流連不捨 A Lingering Unwillingness
他師徒們正然問答，早驚醒了那個妖精。妖精雖是下狠，卻還有流連不捨之意。一覺翻身，只聽見「取經去也」一句，他就滾下床來，厲聲高叫道：「好夫妻不做，卻取甚麼經去？」他师徒们正然问答，早惊醒了那个妖精。妖精虽是下狠，却还有流连不舍之意。一觉翻身，只听见「取经去也」一句，他就滚下床来，厉声高叫道：「好夫妻不做，却取甚么经去？」
逐句解 Line by line
Master and disciple were still at their questions and answers when the fiend was startled awake.
正然 marks an action still under way when something cuts across it. 早 here is "already", not "early".
Savage as the fiend had been, there was still in her a lingering unwillingness to let him go.
下狠 is to act harshly. 流連不捨 — to linger and be unable to part — is the narrator's own verdict on her, not a report of anything she says. Nobody in the story knows this about her except the reader.
Waking and turning over, she caught just the one phrase, “go and fetch the scriptures,” and at that she rolled down off the bed and cried out shrilly, “You will not be a good husband to me, and yet you would go and fetch — what scriptures?”
一覺 takes 覺 as jué, waking, not the jiào that counts a stretch of sleep. 甚麼 takes the question word shén. The quotation marks here fence off a phrase rather than a speech, and 一句 counts it as one line — she catches exactly one sentence.
The narrator does something here that this novel very seldom does: he grants a demon an inner life and takes it seriously. 妖精雖是下狠，卻還有流連不捨之意 — savage as she had been, there was still in her a lingering unwillingness to part with him. Nobody says this. She does not plead it and Tripitaka does not notice it. It is the storyteller's own assessment, dropped in the middle of an escape attempt, and it complicates a creature the chapter could easily have left as an appetite with a sting on the end.
Now listen to what actually wakes her. She surfaces, turns over, and out of all the whispering under the gallery she catches one phrase: 取經去也, we are going to fetch the scriptures. Not the plotting. Not the strange voice in her house. Not the word rescue. She sleeps through the escape and wakes at the pilgrimage, which tells you precisely what she thinks she is losing.
Her outburst then puts the alternative as starkly as the chapter ever puts it: 好夫妻不做，卻取甚麼經去 — you will not make a good husband, and yet you would go for what scriptures? She is not offering an argument but a grievance, and the grievance assumes that marriage and the pilgrimage are competing goods between which he has simply chosen wrong. On her own terms she is not mistaken about the choice. She is only mistaken in thinking it is still open.