Who loves whom???

Hero lovs heroine, but heroine lovs d villain.
But villain lovs hero’s sister,& hero’s sister lovs heroine’s brother
Here, heroine’s brother lovs villain’s sister
But villain’s sister lovs hero’s brother.

......Again!, hero’s brother is also interested in heroine, & U already know dat heroine lovs villain.

Finally two people commit suicide.

Who’re they?
.
Producer and the Director! :))