And tomorrow, I’ll fight again. Still blind. Still bleeding. Still not knowing the end.

It looks like you're referencing a title or concept for a blog post:

Maybe they’re right. But here’s what they don’t see: There’s a strange, hollow courage in staying. In waking up to the same silence. In holding her hand while she texts him goodnight. In loving someone who has already left—just not physically.

Tonight, I’ll leave her dinner in the microwave. She won’t be home until late. I’ll pretend not to hear the car pull away twice.

This is a fascinating and emotionally charged premise. "NTR" (Netorare) is a genre from Japanese visual novels/manga involving infidelity, often from the perspective of the person being cheated on. An "NTR Knight" is a rare twist—typically a protagonist who chooses to fight for their partner's happiness, even with someone else, or who endures the pain for a greater cause (duty, love, survival).

Every day, I wake up and choose loyalty to a person who has already chosen someone else. Not in secret—openly. Painfully. I know where she goes after work. I know his car. I know the coffee shop where they meet.

Since you didn't provide the full text, I've written a based on your title. Feel free to use, edit, or ignore this as a foundation. NTR Knight's Story: I Fight Without Knowing the End By [Your Name]