True, though, for me personally, the cute thing doesn't hold true. There's also the fact that he's always been the nice, almost timid, and naive personality, where May by default is abrasive and vulgar. Sure, we se some glimpses of kindness, and of a super nature, but hardly enough to do away with her overall image. There is going to be bias. But then, if there weren't, it would mean Jeph is doing a put job in writing his characters.
While Winslow hasn't been told to go off and die, I should like to point out she did stress his new body was just a toy. As mentioned earlier in this thread, with other characters, that would be deemed absolutely unforgivable.
Character development is on order for both sides, I think.
Edit: Corrected the autocorrects