why woulw mahi want revenge?

i dont get it in a up date i read that mahi wants revenge fromveer and heer?

why dough what have they done to her yeh i know that mahi and veer loved one another but she the one who told him to marry heer?

and why does yash rape heer has he gone mad or what?

if some one can answer some of my questions i would be very grateful to them bye and thanxs guys................................