Nessian are "Perfect Mates"?

In the CHD interview, SJM described Nessian as "perfect mates," yet HOFAS, in particular the Ember BC, seemed to imply something very different. Do you think SJM sees the problems with Nessian and will work to rectify it in the next book or do you think the Ember BC is Nessian's HEA?

• I know people are going to comment, "I didn't get the gist that anything was wrong with Nessian in HOFAS!" So, here's a breakdown of the Ember BC, which highlights Nesta's negative emotional well-being and the problems I see with Nessian:

Rhysand loomed like a roiling storm in the center of the room. Even the fire seemed to cringe from him. Nesta stood a few feet away, blue-gray eyes wary - no hint of that silver flame. She clenched her hands, but her face was nearly vacant. The handsome, broad-shouldered male at her side was thin-lipped with concern - or anger. Maybe both.

"And where is she going now?" Azriel asked with soft venom. "Now that she has the Mask" - a withering glare at Nesta, whose face was carefully blank - "where is Bryce going?"

Nesta's mate shifted an inch closer to her, his eyes darting between the two of them, torn. Like he didn't know who to side with in the brewing fight. "I'm fine, Cassian," Nesta muttered.

"In a way," Nesta said, waving a slender hand. "It reports to me. This is my home." She sounded thin, brittle. After the verbal lashing she'd taken in the stud...

Nesta had that look, too. Like she was processing a lot of things.

Ember and Randall had just sat down for breakfast in the dining room - guided there by a silent Azriel - when Rhysand landed on the veranda beyond the glass doors. His vast wings were like storm clouds in the morning light. A heartbeat later, Cassian landed, Nesta in his arms. Both looking stone-faced. Pissed.

Rhysand snarled something that had Nesta's shoulders tensing, her head bowing.

"Don't worry," Nesta said, even if that bruised look lingered in her eyes. "My sister- Rhys's mate - gave him that exact same lecture twenty minutes ago."

The pain in her eyes - the guilt - seemed to deepen. "Cassian's the most furious with me of anyone." A muscle ticked in her jaw. Like she was holding back a giant wave of raw emotion. Only a wall of steel kept it at bay.