The Earth and the Flame (Shadow Drawn #2) by R.D. Baker

Book #2 in the Shadow Drawn Series

Tropes: Fantasy Romance, Fated Mates, Friends to Lovers, Angels and Demons

When their memories come back to haunt them, they’ll realise they were never safe to begin with

Red smoke spews from the mountains. Violent nightmares haunt him every night. Strange creatures attack his village. To figure out what these events mean, Tallesaign must travel to the mountains, where something unexpected calls to him.
It’s there he finds Juno, injured and alone, but she’s no normal woman. She’s a fallen angel, cast out from the Halls for a reason she no longer remembers.
As a demon, Tallesaign knows being with her violates the Blood Covenant. But neither can deny the inexplicable connection between them. When they draw the ire of the Halls, only the truths of their pasts can save them, and what they learn will forever change everything they’ve ever known