In a way (a sad one, but still), Wellsie did get her HEA. Tohr got her out of the In Between. She won’t suffer for eternity in the In Between, but rather, has passed on into The Fade to spend eternity with her son. I think that’s her HEA. And that way, she will see Tohr again when he passes on. Yeah, it’ll be messy with Autumn being there too, but I do think that’s Wellsie’s HEA.