They are focused on their interests and business profits first and foremost - all countries are and nothing to be offended about.
UAE has signed in for the J-35 - and in larger quantities with cash in hand instead of Pakistani soft loans and other approaches.
They are openly(some say voluntarily) not interested in having Pakistan get any further military equipment from any source. my hypothesis (happy to be corrected) is thatey are now an unfriendly country similar to how Egypt occasionally has been in preference for India but perhaps more so now along the lines of fully supporting India barring providing their own military.
Unfortunately, since the entire ruling class incl those in and out of uniform have massive financial interests mostly at personal (but some even institutional) level they are willing to eventually shrug and take the hit