I note from the last couple of episodes that Sugni is now purposely challenging TVS:
1. When they accidently bumped into each other after her mendi she gloated and pointed out that her mendi had A for Aditya. TVS reacted and then she took it a step further by cutting herself and saying she has removed him from her life
2. After the conversation with Amu, TVS went to the temple pond to get some fresh air, I guess, as he was skipping pebbles. Sugni followed him there and confronted him about upsetting everyone at the havali, inciting Amu etc.
She did not need to say anything to him when she bumped into him after the menhi. She could have stepped aside and carried on walking. Also she did not have to follow him to the pond and lecture him on what he should do in his own house and with his own family after all they are his family and that is his home. She has just moved in.
If she wants nothing more do with him and wants this wedding to go ahead without any problems surely the best thing to do is stay out of his way so Why is Sugni goading him in this manner?