My DD has been searching for this book, read to her by a lovely supply teacher in primary school. DD thinks she was maybe in year 3-4 at the time, which would be approx 8-10 years ago. Here is what she wrote. 'On the front cover it was beige and the drawing was delicate and there was a big giant bear and a small bear. it might have had the word love it in. there wasn't that many pages but the book was quite wide and square. there was a page where there was a big bear and a small bear and it was a delicate autumnal drawing with leaves and a bench they sat on and i think there was another scene where it was blue and dark and the bears were in the park but it was sad. the bears didn't wear clothes or humanly things. i cant remember if there was more than 2 bears and it had to have come out before 2016 i think. the illustrations were delicate and hand drawn and there was a bunch of pathetic fallacy in it i think like a storm at the beginning maybe.". A bit rambly, but I just go with what I've got.
Please Mumsnet, help me finding what book it was. Will make an anxious teen girl happy.