If you say Sana shouldn't be in love with Paras just coz she clearly has been told he doesn't love her and loves Mahira, why should it be okay for Sid to be in love with Sana when he too can clearly see she loves Paras?
And what makes you think Sid loves Sana considering he probably sees and understands what she feels for Paras for than us.
I love SidNaaz but I hate it when either party ke fans or even SidNaaz fans start blaming one of them. I mean Sid is a smart guy, has enough experience to read anyone and understand aage peeche daayein baayein ki full story. He knows what's happening. Nothing is sad here.
Let's just love SidNaaz for the bond and genuine relationship that they share. If their relationship has to eventually and organically grow into something else, it'll happen and it'll be beautiful but for now, let's see the beauty in what they share right now.