Kris Aquino in the interview even related that John Lapus cared for her son Josh when the boy was only 1. So they have been friends since then and she was only giving a nice gesture to a true friend.

Still, even Ruffa Gutierrez was shocked when she saw Kris on the other station, a rival of the show, The Buzz, where Kris Aquino even hosted just recently.
Ruffa Gutierrez then just shrugged it off saying she cannot argue if its for a lifelong friend like John, and then invited Kris to guest on The Buzz in its month long 9th Anniversary Celebration.