It is now known that the pair lived together from 1977 until Alan Rickman's 2016 death.
The 'Truly, Madly, Deeply' actor kept a diary, where he documented part of his personal life and professional career, between 1994 and 2015.
Following his death, Rima published some of her late husband's most significant entries, obatined by 'The Guardian', with her writing a couple paragraphs as well, mostly on Rickman's battle with cancer.
One of them read: "Alan’s last diary entry was on 12 December, but he had been getting weaker and writing less for some time. All through the autumn he was eating less and often feeling sick. But we continued to do most of the things that had always been part of our life. We saw films and plays, met friends, went out to dinner or entertained at home. Alan also spent a lot of time watching TV – his two favourite programmes at that time were 'Don’t Tell the Bride' and 'Say Yes to the Dress'. Our trip to New York in November was very important. To stay in our flat again and see so many of the friends who had meant so much to us over the years. Alan loved New York."