can Tulsi make her mind?

I just don't get Tulsi.

Whenever, she is with Nandini she rants about how she killed Ansh to save her daughter. And always goes on and on about Nandini is her daughter. But, today, she said: outsiders are not allowed. So when you need to protect your family, Ganga and Nandini become daughters and when they are not required, Tulsi can not be bothered??

Sorry to rant but Tulsi always mumbo-jumbos about relations and how they can not be erased, then why show such double-standards. Probably, she should throw Karan as well out (as he is "Mandira's son")