See i think sid and sana both had a talk after the kurkure task which was not shown to us and since then both hv changed their game a bit ..
After kurkure task i remember sid was angry with sana that night when epi ended ..Next epi direct morning was shown when both were cuddling in bed and after that theres a change in their game ..
I guess both hv made a pact to interact with all housemates and play the game instead of just sticking to each other since only few weeks left ..
Same time their inner turmoil mayb going on too about keeping distance fm each other thanks to last wkw fiasco and age talks ..
But i guess giving space to each other is their joint decision ..I do see sid fine if sana sits with asim or even rashmi and even sana is fine if sid sits with rashmi or pahira ..Sid comes to her rescue though if sana gets into serious fight ..