Has a Rin fan, i would want nothing more, but also, dont be mean to the girl... They are usually not really aware of it, like Yumi didnt really tough about it, until Sensei pointed out if she knew what she did during the 2 months skip, that's when it clicked on Yumi. And same goes for Makoto, if Miku didnt got into a loop, she would have tough it was all a joke.
Rin might or might not be "free" for now, but she is just having a normal conversation and nobody pointed it out because they all ignore those kind of time comments.
But yeah... man, i would LOVE for Rin and her Homie to be Rooftop Homies.