That explains it. You don't remember Geostigma.

[That was going to be something to explain. Rufus lowered his hand, pulling the sleeve of his coat down. That encounter with Cloud on the rooftop of the Shinra felt like a lifetime ago even if it had been just a few years.]

I'll tell you what happened but not here. We're standing out in the open and I want to get to Midgar first. There is a lot I have to tell you.

[And he needed time to figure out just how he was going to do that.]