I am really struggling to come up with any negative traits about my ex?

I know they say that sometimes in the first few weeks after getting dumped you put your ex on a pedestal and blame yourself for what went wrong and want them back etc but as time passes you start to find faults in them and realize they weren't right for you etc...

Now we have been broken up for longer than we were together and I still love him and think he is a wonderful human being. I know it would help to make a list of negative things about him so that I could stop idolizing but I literally can't? I don't want to be disingenuous and make things up that aren't true...and the truth is he was a kind and intelligent man who never disrespected me in any way and made me feel super loved and supported always. This is making it so hard to move on...why can't I find any faults in him?