User blog comment:Alextheawesome/ATSD promo/@comment-4101140-20110628140540/@comment-166.137.143.132-20110628164730

(This is Alycia) Wild guess, but maybe something happened to Phineas that caused Isabella to take control of his 'weaponry'. That may explain why she looks to Ferb for approval, but Phineas is nowhere to be seen.