請問這個英文翻譯成中文是什麼意思呢？

Not Your Mothers Rules Girl Tip- P.115 of NYMR "He may try to see you only when he is bored or when his original plans fell through. Don't be his plan B. You must silently show a guy that he has to work to get you by saying no to spur-of-the-moment hanging out."
So true!! -E

女孩撇步 非媽媽忠告版 --本書 第115頁
"他也許只在無聊 或是他的原計劃告吹時 才會想要約妳。別成為他的備胎。妳可不動聲色的藉著拒絕他臨時的邀約，來讓他知道他必須努力才能追到妳。"
真是千真萬確! --小艾