Gray is quiet for a few moments, absorbing that information. Lucivar doesn't sound worried about it, though, and while it's a bit unsettling to realise that he remembers things Lucivar hasn't experienced yet, he and Cassidy are from the same time - at least, they both remember being married - so that will have to be enough.
★ You helped me, ★ he says finally. Lucivar deserves to know that. ★ More than anyone else except Cassidy. Whether you've done it or not where you're from, I haven't forgotten. ★
It's not an accusation, but rather an affirmation that Lucivar is someone Gray considers a friend, someone who can call on him if he's needed. Not for raw power, perhaps - Purple Dusk will never challenge Ebon-gray - but for less tangible things.