Karan Johar is digging up quite a few graves in his autobiography 'An Unsuitable Boy'. He has spilled beans on his soured equation with Kajol admitting that now things will never be the same. Writing about the moment in his book, ‘An Unsuitable Boy’, Johar says her tweet was the final straw for him. Karan Johar says his 25-year-long friendship with Kajol ended over her one-word tweet supporting husband Ajay Devgn’s allegations against the director during the box office clash of Ae Dil Hai Mushkil and Shivaay. Devgn went public with a recorded conversation with self-proclaimed film critic Kamaal R. Khan, who allegedly said he was paid Rs. 25 lakhs by Johar to write favourably about the Ranbir Kapoor-Anushka Sharma starrer. Devgn demanded an investigation into the matter and Kajol came out in her husband’s support by tweeting, “Shocked”.“When she reacted to the whole situation, and put out a tweet saying, ‘Shocked!’ that’s when I knew it was completely over for me. I felt that’s it, It’s over. And she can never come back to my life. I don’t think she wants to either,” Johar writes in the book. The director says the end of his friendship still hurts him and it bothers him that he and Kajol share common friends.