That's okay! :3 (And if anybody's added me, I generally don't check, so if you'll tell me that you did, I'll add you right away.) But I think we were in Tony's game together?
Zeke could've known her when she was young? He settled down in Ganymede in '55 and pretty much found work right away because of some very friendly and nice fishermen. He was in that life for eight years, so there was probably ample opportunity for them to meet, and he was that kind of idiot who'd share everything he had with people. If so, she'd know why Dayyan is, since he doesn't talk about him much.
And Zeke's pretty interested in the whole engines~ situation, so he would definitely bother to talk to Lux more than she'd probably would've liked to when they first met? He's not a total idiot, he just doesn't have much in the way of a classical education, and is a tactile learner.