Hannah was a perfect formation of their mother, she inherited more from their mother than their father. The moment Isabella sighted her mother laughing with some men, holding her glass of wine, she got shattered.
It was as if her soul left her body immediately because all these years that she left them, she was actually flexing and was living a good life.
Didn't she think about her children for once?
As much as Isabella was dumbstruck and attacked by her feelings ruthlessly, the minute Isabella realized her mother was turning to face her way, she looked away because she didn't want to react in the most vulnerable way in front of her mother.
Honestly, Isabella didn't know why she walked away. Her body just made the move and she was grateful she walked away from the suffocating area.