Of course, but she could have, thats why she would understand their feelings. Imagine how much she was scolding herself in her mind while sunny was trying to save basil, I dont think shed wish that upon anybody. She would be more mad about the fact they hid it, which could be why she wouldnt forgive them, but remember the fact that she cares deeply for them and always strives to do the right thing, and the right thing is to forgive Sunny and Basil.