If this is in the timeline created in Rebellion, why wouldn't Madoka talk to Homura?
If I remember correctly, aren't Homura and Madoka basically back to being just acquaintances in Homura's world? So Madoka wouldn't go out of her way to talk to Homura outside of school.
Correct me if I'm wrong, though; it's been quite a while, so I don't remember everything. I'll re-watch the entirety of Madoka soon.