"When Mango and Nathaniel arrived, Bettany was already there. Perhaps she was afraid that someone would recognise her, so she wore a cloak and covered herself completely. If Mango wasn't familiar with her, she would not have recognised Bettany."
"On the other hand, Bettany didn't expect Mango to come as well, so she felt a little awkward."
"Madam, you're here too."
"Bettany looked at Mango with some embarrassment. Well, she didn't know why she didn't have the courage to face Mango."
"Perhaps it was because both of them were women, or maybe she knew Mango's feelings for Nathaniel. Hence, she knew that Nathaniel might forgive her after she poisoned him. However, Mango could choose not to forgive her, so she was a little nervous."