Coupled with publicly being singled out by our HC, I'd imagine Perry also feels some type of way about being surpassed in the pecking order by a pair of rookies, one not even drafted and didn't play in the preseason...I know I would probably be done with the Saints too if I'm a competitor and I felt like the situation was unwarranted.
I bet it felt good for Perry to actually feel pursued and wanted by someone else. These guys are all human, after all.