So, Valkyrie, never think that my first meeting with that little Black Dragon from the Human World was today. As I said, we've known each other from long ago, and our relationship from the time we first met was both adversarial and friendly... Now, the relationship has become rather subtle.
You could describe our relationship as either [old friends] or [both enemies and friends].
However, Black Dragon Lance sent me to collect his debt from you, more to... show off to you, or to display his connections.
He wants to give you a bit of a shock."
Guessing the reason for the Valkyrie's displeasure, Donnash chuckled and shared his relationship with Lance with the Valkyrie.
He didn't want the Valkyrie to think that Black Dragon Lance was a Giant Dragon who [can't keep his mouth shut]; that guy wasn't like that.
Having him ask the Valkyrie for a debt surely contained an element of boasting.
And it was a dual boast.