What silent promise did Adeline make to Ye Ye after the incident with encyclopedias?

After the incident with the encyclopedias, Adeline made a silent promise to her Ye Ye to always make him proud and to never let him down again. This commitment stemmed from her deep admiration for him and the desire to honor his belief in her potential. Adeline's promise reflected her longing for acceptance and validation in a family where she often felt neglected. It symbolized her determination to rise above her circumstances and achieve success.