let us think agar engagement ho bhi jata ko kya mangni toot nahi sakti kya. it can happen at any point of time. now maan is again saying ki " unka rishta ek bedaag rishta hai" to kya ager geet dev ko janne ke baad maan ke,aur dadi ke khatir engagement kar leti hai galti phir se geet ki hogi to ynke rishte mein phir se jhoot ka daag lag jayega . will, maan and dadi will understand if truth later comes out. NO, again misunderstanding will crop up. so,it's better geet should stop engagement, or truth shld come out before maan.
i don't know i am right or wrong, but it's apositive sign for me if you observe,when dev says he is going to speak bro at any cost before mangini and march out in right direction and maan is shown going in the opposite direction reflecting maan and dev separation after knowing the truth ,maan will support geet(pov).
sasha dialogue can cause major problem in geet life. she said agar mere karan tum girogi to kabhi utth nahi paogi. will she will be the first person to know dev and geet realationship,or she will create misunderstanding btw geet and maan(even though maan knows sasha mentality he never said anything to her verbally ,but saved geet many time) but can saha will taste sucess this time