Kelley Armstrong’s Otherworldly series may be something you would like. Supernatural, mystery, easy to read. Grief is a strange thing, I found it hard to read at first but now(2 years since I lost my son, followed within 6 months by my 2 dogs, at separate times, that were part of my emotional support) I find reading very comforting. Time really does help it not hurt so badly, I believe we are just separated by a thin veil and that belief helps too. https://www.amazon.com/Bitten-Otherworld-Kelley-Armstrong/dp/0452296641/ref=mp_s_a_1_16?keywords=kelley+armstrong&qid=1577413216&sprefix=kelley+armstr&sr=8-16
The Otherworld series is so good. There’s definitely romance but not a lot of sex - no more than the true blood books. Bitten is the first in the series. https://www.amazon.com/Bitten-Otherworld-Kelley-Armstrong/dp/0452296641
Hmm… I looked at the mass market paperback section, and it’s 544. Maybe it’s different in different formats? https://www.amazon.com/Bitten-Otherworld-Kelley-Armstrong/dp/0452296641