He thinks she's a good person and her heart's in the right place, he just also thinks she's angry all the time, including at him because she thinks he's dumb and doing dumb things and kills stuff she's mad at. Which may or may not include him. (the second main configuration tiamat/dawon did a wonder on ed's ability to not be paranoid... :'D)

So as far as thinking she's a good person? No, you can't change that, Ed thinks everyone this side of Nyssa or Red Yaksinis is a good person somewhere. But pathos would help a lot, he's rrreally bad at seeing the nuances behind her emotions and just sort of blind faiths that she means well--which is true and she seems to confirm in her tsun way but still.

To turn that around is there anything Ed can remember that'd change Clover's perception of him? Thinking that maybe he's not dumb/etc.