Does she not like me? lol

[playfelt]

Sound to me like mom is her source of entertainment and when alone she can play and entertain herself but she has learned to play the role of victim - oh woe is poor helpless me - whenever mom is around and now you have been given that honour. It means it isn't that she doesn't like you it is the opposite and she accepts you as the mother figure.

Since you know she can be fine just expect that and ignore any wimpering protests and just go about the day as usual. When it gets no reaction in theory it will stop. You could ask mom if she does a lot of it at home and if so how do they react to it and that will tell you a lot.