Because her friends were disparaging her foster brother and it made her sad.
Explanation:
Aleena knew that her adopted brother Hakeem was adapting to the new life and this could take a while full of mistakes and successes, but it was necessary for her brother to feel comfortable with the new life he was having for this dating to be more efficient. . However, when her friends belittle and make bad comments about how her brother messed up the sand projects she is very sad. She knows that her friends had good intentions, but the comments make her brother feel uncomfortable and that made her sadder than losing the sand projects.
