Actually they cannot show mannat angry and vik all guilty intially.. This will make audience have soft corner for vik and they might feel that mannat should let go off things that happened 7 years back and forgive him once he apologize... But makers obviously wouldn't want that... Vik's way of winning back mannat is major plot line of post leap for Vik... So it cannot be that easy..... That is why they are showing even after 7 years mannat still harbor some 5-10% feelings and Vik being angry and also moving on.... This will make audience feel that mannat shouldn't forgive vikrant easily....
And actually it's good that mannat saw vik and family first...after this she is gonna burry even the 5-10% of feelings she had and will solely concentrate on her family and sruti ma's culprit... This way when she faces vik she will be completely strong... She wouldn't even show a little bit of softness, which might hurt vikrant more...
That being said do you guys think yash's health can be something that is basis of vik-yash relationship... He seems to be excessively worried for her health... Could it be that yash being a friend helped him in his tough phase and after a point proposed him, but Vik might have denied then she could have put up this mental health issues drama... And this is reason why Vik is in relationship with her???... Either Vik himself Or Yash's brother could have Emotionally blackmailed him into feeling that he is obligated to help yash since she helped him.. And that is why he might have acted to accept her proposal and puts up this gf-bf dynamics until her mental health is fine...?
This could explain why despite being uncomfortable, he doesn't draw a strict line.... And if he actually considers yash his gf without any kind of scenario like above then he wouldn't react the way he reacts when yash makes a move... Ya they want to show he is not ready to move on.. But if he is actually trying to and not being able to move on then his reaction would have been that of hesitancy.... But his reactions to her moves are like he want to escape from the situation, it appears to be discomfort and displeasure rather that just hesitancy.. And if he is actually trying to move and considers yash his gf he would feel at least a little bit guilty for denying her advances.... But it doesn't seem so he is guilty...he is very well aware of his discomfort and doesn't even feel guilty about it.....

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