Have you tried Maggie Walsh's Angel Pack, and Beyond the Angel Pack series? They have a good amount of angst and heartache, with a healthy dose of fluffy smushy feels and great endings.
There's also Maggie Walsh & Cree Storm's Eternal Flame, & Eternal Flame Maddox series in the same themes.
Stormy Glenn's Wolf Creek Pack is excellent.
OMG there's so many to choose from!