Lata,
Sure its different.
Abhi told Mili ...I have told what u wanted to hear, lekin yeh sach nahi hai....which means pyaar nahi karta.
Pyaar nahi kar sakta means....He can never ever. Meaning he cant ever in future too.
He says she will remain his friend and he also says....main sirf...sirf Simi se pyaar karta hoon...which also means he DOES NOT love Mili.
That girl cant understand...Thats it.
So I feel the lines were okay