She has done so much for gunjan and she supported gunjan so much. Yet when she is angry for once, she has become an aunt and nor more than that. Will she not scold her own daughter if Pihu has hidden things from her? Has she not scolded rachna and was angry with her when rachna tried to be nasty with gunjan? It was so easy for her to get rid of gunjan and concentrate on rachna. She did not do it.
When Shayl loves gunjan unconditionally, she has as much right to be angry with her. Every real mother also gets angry with her child.
It is very unfair to say that Shayl is only an aunt.