Tej's divorce/ YugAm

1.) Why did Tej and Shivangi divorce? (I stopped watching the show during that period.)

and 2.) When did Yug profess his love to Amrit for the first time?

When Yug came back and decided not to go to New York, I was shocked when he out of the blue casually told Amrit he loved her...that's why I'm wondering when did he tell her for the very first time. I wasn't shocked that he loves her (it was obvious)...but I wasn't aware that he already told Amrit.

And about Yug's love for Amrit , he professed when they were in vishal's house ... where they lived alone afterwards