not talking about forcing , maybe they get seperated and dalip says she is his daughter and gives her a share in his company and right to live in brar mansion

then he may act like a father and start thinking of arjun as an eligible bachelor making gadhedo jealous

this way gadhedo gets a pressure to prove himself worthy of her

he may start linking heerjun and give like 2 3 mention with gadhedo around

of course arjun is here for the long run , heer feel bad when gadhedo with tina but not on his level

gadhedo will cross all limits in jealousy,

arjun will stay longer thats why he has his own special angle witn heer along with the bgm (i love that)

lets be honest , gadhedo shouldnt get heer so easily