well my dear Sam...
Tushar does not know the fact that Kareena did all this for him..only kareena, tribuvan and prem know...but Prem is getting so selfish and he is doing everything to ruin her love with tushar inspite of the fact that he knows that she loves Tushar...no friend would stab like that...
Tushar also had told Kareena in numerous occasions that he hates lies and she even wanted to reveal everything to him...but Tribuvan stopped her from doing so...so he will back her. And you may get angry with your spouse or friend and break relation, but not with your parents and Tushar will realize what Tribuvan will tell him...
Also, Tushar knows the truth know that Kareena is lying but he does not know the reason for her lies...so that is what he is trying to get it out of her mouth. He is putting her into suitations where she will give up because of what her heart will oppose and then she will tell the truth to everyone.
Tushar may want to see if she has the guts to accept the truth and tell that to everyone and if she does and if he knows why all this drams...he will sure feel good about kareena. I think Tushar is a great guy and he loves kareena a lot but that does not mean he supports things that his heart does not vouch for....
Please don't say he is a bad guy...
ðŸ˜