Well I think he is .. .consider the situvation Anurag did not tell Sam but Sam did not tell Anurag about asking Devki to spy i mean ofcource if she told him he would have told do not do that .. and so on ..... eventually telling her the truth ...
Obviously now Anurags had to be carefully and not tell Sam because Aparna was watching her and obviously he would natural reaction by Sam to what Maya did like dance ......
Another thing people keep on forgeting that Sam get to spend the rest of her life with someone she truely loves but Anu has to make comprise with the rest life and he is doing preaty good .... Sam should have more faith with Anu after all he told her everything about his previous life ...
A good friend is always a good husband so Sam should apreciate him for helping Prena as at that time she need help .. she should get back in their and be supportive and if she was really mad she should listen to Anu once than not during the courtcase . ...
So i think it is not Anu fault and neither is it Sam fault .. . It the fault of Aprena (*****H)
Chow .. Au Revoir Mon Amies