[Oh, of course it doesn't. Leon will be surprised to find out there are two different worlds and almost perfect copies of his companions, he will try to learn more, understand more (and eventually end up awkwardly protective around Aerith and/or Yuffie if they'll ever show up after those hallucinations), but... not now. Now he's unstable and crazy, ]

... [He stares for a long moment to the screen, leaning closer to it and offering Tifa a splendid view of his pale skin covered in sweat, tears and his wonderful dark bags under the eyes.] It's driving me crazy, Tifa. There are bugs everywhere, Yuffie and Aerith are dead and even if you say it's a trick it seems so real. I can smell them, I can feel cockroaches crawling on my skin, it... I can try and focus on other things but you have to swear they're not here

[It seems to help, probably because he wants to believe her. Maybe Tifa is the newest addition to the committee but she still represents home in his mind.]