Laquisha didn't want to sound like a nosy neighbor, but this Luca person seemed to be a big motivator for Noah. She had never met anyone that could motivate Noah enough to even brush off Mephisto. Moreover, she was curious about that thing Noah mentioned: 'Asmodeus took Luca away from him.'
It's just that both Eleanor and Mephisto didn't know how to begin. The auntie felt that it wasn't that easy to open her nephew's sexuality just like that while Mephisto was trying hard not to use kind words about the earl. In the end, the negotiator only smiled. He had known Laquisha for so long, and so he had an inkling of how to deal with such a thing: "Ever wondered why Mon… Noah never looked interested in you?"