Lin Daiyu has always been suspicious of Xue Baochai. How did Xue Baochai really impress Daiyu and make them soul mates?

Jia Fu wrote a poem at a banquet, and Lin Daiyu said in the West Chamber, "What is a beautiful day?". During the feudal aristocratic period, these books were forbidden in boudoir. At that time, no one recognized the source of this poem, but Xue Baochai did not expose Lin Daiyu to her face. She just talked to Lin Daiyu alone afterwards, which gave her great face. Lin Daiyu also thanked Baochai for her kindness. From then on, they were in each other's hearts.