Your Romantasy world is vivid. The love story keeps losing the thread.

The balance rarely comes from plotting both strands equally from the start, it comes from finding where they're actually the same strand. When the magic system creates the specific tension between your two leads, or when the court intrigue is the thing keeping them apart, the romance and the fantasy stop competing. They become one story, each making the other hit harder.

Slow burn stalls when the only thing keeping the characters apart is circumstance. The tension has to live inside the characters themselves, in what they believe, what they're afraid to want, what they've decided they can't have. Every scene that advances your world-building should simultaneously tighten something between them, even if nothing is said.

Readers will follow a morally grey love interest very far into the dark, as long as they understand his interior logic. The HEA doesn't require him to become good, it requires him to choose, clearly and at cost, the person he loves over the thing that made him grey. The transformation has to be earned inside the fantasy stakes, not bolted on at the end.

The daily practice works at the level beneath craft mechanics, the resistance, the self-doubt, the paralysis that stops you from finishing the chapter where the magic and the relationship finally intersect. It's a daily practice designed to keep you in the chair and in the work, building the consistency that romantasy writing across a long arc actually requires.