yes she was very much to blame not ever speaking up yet she always wanted her wedding to stop by abhi. It was like she kept showing no. But she was desperately wanting to see abhi. Her mind and heart was with abhi even though she was taking a phera with nakul.
She knew how abhi was very impulsive and immature she should not have asked abhi to burn or bury abhi gave to her. If abhi had held on to them. He would have had jeep back and may be some money too to support them adn his lucky bell.
Yes, thats right, during Meheni, she is so happy to see him finally come to her house and she is also happy that it was Abhi's mehendi that was applied on her hands. At these both the instances she is initially very happy and later puts up a pretense. Same near the marriage mandap.
She leads him to burn those gifted items so that she can rise ill-feelings for her in him. But she should have known better how Abhi is, that such things would not deter him from loving or finally marrying her. Thats is the reason she is responsible for this mess of them being homeless as also in the case that she hadn't informed Nakul well in advance when it was necessary to be told.