There's no context required. Eridan immediately knows what Jack's talking about, and he immediately opens his mouth to blurt out the obvious, you didn't fuckin' find me, did you?, but he snaps it shut before he can actually say something that stupid.

Instead, he checks his communicator, marks his spot in his reading, and then tucks it away, crossing his arms and frowning at Jack with what he hopes is a mildly exasperated expression. "Yeah, okay, so? A lot'a people wwere lookin' for me." It's a blatant lie and it makes that wriggling creature in his gut leap because nobody had been looking for him, because here he's nonessential and unwanted. No, fuck that, he's completely wanted. That's just the white room talking.