Well, I know that grdell and Loves both wrote that the two of them have become very close and Mae spends a lot of her free time talking to Lex and asking him tons of questions about his life as a companion. I know that Vince is also close to Lex and they talk, so I can only assume that the same conversations have taken place, more or less. I can imagine Vince asking Lex what did Mae ask him or what did they talk about.... but that's just how I imagine it. I haven't spoken to them about it personally.