Satya i am not sure what are they trying to do but eventually I think he is being used to elevate Virat and praise his deewangi for Sai.. He might just be someone who is here to bring Sai Virat closer, showing Sai that she has got a Kohinoor(better than the real one) in Virat. Because no one can lover like Virat does .
Him defending Virat , if i have to force a reason for, i think comes from the fact that he has seen Sai getting besudh deewani , running towards him , forgetting ehr state and every other pain , physical or mental, for Virat , forgetting every barriers they share physical, emotional or for that matter societal. He saw the deewanapan there..
He has not seen the abuse , the real forms of it from Virat towards Sai, he is keeping his hurt at side & just seeingVirat as the man Sai loves immensely. Also his whole rating of love and getting it back is something what is making him say what he spoke about Virat today.. Because he kept saying Sai will get him back because he saw how Sai broke down driving Virat away from her, hurting him. She was not angry for being character assassinated per se..
About their disagreements, for now I see they behave mature, but there is no thehraav to their scenes..actually and it bothers me, Satya might me reduced to another Samrat and and I feel bad for Harshad that way.
Also more than what happened at Satya's place i am upset at how she behaved at hospital. At Amba's place the family being so excited and giving her the kangana probably triggered to speak the truth. and then it was her core character again..I liked how Satya handled it though after hearing her..
I did not like how she was not even ready to give him a day to think about it, how she wanted the answer right then and there..That was so selfish, given the guy was pulled into your muck, without even being asked and yet he stayed back with you supporting you, without even asking you any questions at all...
The first thing she should have done was go and get back Savi giving him a day to think and gone ahead with the day.