I'm actually rooting for raghav and ambi as per the original script. He is a more complex character, and yes i think it's a sincere suicide attempt.
Vinita, and in fact all characters are selfish in the show including the leads, they have their priorities and makes them looks selfish. Vinita and mama just wants jaidev to marry ashu. As per the original, vinita is shown just gossiping and being harsh but never plots to humiliate them.
You mentioned about assault, but I have another issue here. Ambi looks like a two-timer who is giving hope to two guys, and at the same time lying (hiding) to her brother. More than sekhar or raghav, she is more selfish, manipulative and being unfair to all.
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