Even if sanju was engaged or not,sid shouldn't have hurried.u met spoke to girl whom face u didn't see,only thing u saw was tattoo,then u try to find her.once u know about her u send her gifts nd call on a date.that was wrong move of sid.he should first try to know her,as a person how is she her nature all.but na his meeting with her was not good then also he dared to call her on date nd expect her not to be angry on him plus reason he gave if I wasn't engaged to monu u could have liked / accepted me.now instead of correcting all his mistakes he is still in sanju thought nd dreaming about her.a few seconds talks can't make u fall for any girl nd u go nd propose her nd then expect she accepts ur proposal with questioning u.even though sid is cute guy he doesn't know the reality of life specially girls like sanju who r rough nd tough from outside but inside daily face so many emotions that hurt them.