loved your anylysis and i also believe that its not love for Astha yet
more of attraction and infactuation
and lately the way Shlok is behaving..completely imposing himself on her..she might revaluate her feelings again but knowing Shloks desperation to hold her tight now..he wont give her any chance and as we can see he is tightening his grip really really fast now..questioning her about single details of her feelings and to the extend to reaching her home to apologise (rather threaten her for not picking her phone)..he is not ready to take chances with all the hard work he has put in playing with her emotions...he wont let her chicken out at the last moment
as the event is approaching soon he will play his last card to hug her in public so social pressure pushes her more towards him..now holding her after that or abandoning her is another point..and bow her head and her pride...hmm..i strongly believe he wont be able to have that satisfaction...he can put her in false relationship and hurt her feelings for sometimes but Astha has always stood upto to situations which need a brave heart and i am sure she will survive this time also...
and for Shlok "Karma " is the word..he will get what he has given..not only from Astha but from his blood as well.more of turning point in their lives..Astha becoming more mature and strong and he on the downhill path..repenting and reformed by the one he tried to break...
i see marriage very soon as Astha will not only stir his guilt but also have a major role in changing the relation equations at his home...he has to see and suffer for his arrogance and misgivings and ultimately his pride will be broken and his head bowed...what have to be seen is what he bows/breaks first
his head or his Pride