Ok, lets assume Tulsi interfered. Does that mean: poison your husband's mind or make him beg you? What harm did Tulsi cause to Damini? Damini accused Manthan and Eklavya for her own-self. It was Bhoomi who had sent Mayank to mental hospital not Tulsi! Damini should have no grudge against Tulsi!!
Tanya: When Nandini went into coma, she agreed to marry Karan because she loved Karan. Tulsi always supported Tanya. She knew Tanya was preggie when Nandini came back. And what is wrong in Tulsi and Nandini's relationship. Nandini was raped by Ansh. She trusted no one except Karan and Tulsi. Tulsi went against everyone to get Nandini and Karan married. That is why Nandini treats Tulsi like her maa and respects her.
Tripti: Sahil is a wimp and she controlled him. She took everything away from Ganga. Before, Ganga and Sahil got married. Ganga was married to Gomzy and he cheated on her. It was Tulsi who got her justice and it was Tulsi who got her married. So what is wrong in Tulsi and Ganga's relationship.
Tanya and Tripti are just insecure. When you do something, you always try to justify by pointing fingers at someone else. Thats what these two have done.
At the end, money is imp but not everything. Everyone would have praised Sahil and Gautam if they would not have been such wimps. All 4 of them are greedy.