Why did she suddenly changed?

After Ruben went upstairs with the porridge, he found that Emily was still asleep. After thinking for a while, he thought it would be better to wake Emily up. “Wake up, Emily. Have some porridge and go to sleep.” Ruben gently patted Emily’s arm. Emily woke up in a daze. When she saw Ruben, she recalled what had happened this morning and immediately pulled the blanket over her head. Ruben looked at Emily’s actions and smiled. Was he that scary? Ruben pulled the quilt off Emily’s head and waved the porridge on the top of Emily’s nose. It smells so good! This was Emily’s first feeling. Then Emily’s pretentiousness and shyness were immediately forgotten and she sat up without Ruben’s help. Emily looked at her clothes and was glad that Ruben had helped her put on her clothes. Otherwise, she wouldn’t have sat up even if she had starved to death. Ruben looked at the conflicted look on Emily’s face and smiled. Then, he picked up the porridge and blew it gently. After thinking that it shouldn’t