I think Arnav was only thinking of Anjali in this whole process...he has not thought out the long term consequences of his actions.
He knew his sister would be hurt and her marriage doomed, yet he still went to tell her the truth about Shyam. It wasn't until he found out his sister was pregnant that he decided to change his course.
Shyam and Anjali have been married for about 3 years and she's been praying and what not for the longest time for this baby...so it's invaluable for her. If she learned about Shyam now she'd be shattered...maybe suffer shock...depression...enough to harm her health or her baby. This is what Arnav is trying to avoid.
Also...Arnav only saw and heard part of Shyam and Khushi's conversation on the roof. He basically heard Khushi ask Shyam why he doesn't leave Anjali? He doesn't want that to happen in Anjali's current condition.
So marrying Khushi is the only short time solution to the crisis regarding his sister that he could come up with.
Anjali is about 3 months along. With a 6 months deal, he has bought just enough time to technically separate Shyam and Khushi and have his sister deliver the baby...After that I think ASR feels he can expose the truth and get rid of both of them. And Anjali will have her baby to dote on and comfort her.
The only thing he's forgetting is that he's in love with Khushi. Living with her for 6 months and hating her and keeping his distance from her is not going to be easy...He is after all a man.
What happens after the 6 months clause is up...Let's see 😃
Edited by ummesulaiman - 13 years ago