1) shivaay to Annika - "chahe kuch be ho jaye , darna mat . Hum saath the , saath hai , Aur saath rehenge. " it was like shivaay was telling Annika to gear up for the worst . I think he knows but wants to get down to the motive . And for that he wants Annika to be fearless and bear with everything .
2) mehendi par Mera hi naam likhana - said with so much confidence . It was like telling her no matter what I am gonna stand by you as ur rightful husband . No storm will sway his position . And he said that right after pinky taunted Annika . He was right behind her .. Hard to believe he didn't overhear ! And right after she left he asked "tumse koi kuch kaha ." He knows !
3) now that they know that pinky wants their separation .. They will give it to her .. See to what limits she goes to. Coz it's hard to believe that shivaay didn't catch on anything when he went to investigate . He saw the sticker too , had his ears glued to the door and was appearing upset right after .
4) yes it's hard for him to digest the news that why he is playing this drama . To get to the bottom of everything . And I think it's all a drama .
Again a flashback and drama will be revealed to us . And it will disappoint me . I actually want a real seperation from Annika 's side . She has been way to easy for shivaay . I want the man to fight for his love .. Not under pressure or under the influence of drugs . But fight because uski sansei rule jati hai agar woh na ho .
Disclaimer : I might be wrong , but one can't ignore the gut feelings . And the subtle hints being thrown at us says a lot . đ