Your personal Tumblr journey starts here
What if Doey's stalker form is his "real" form and most of the time he's actually making an effort to stay in his friendly Doughman shape?
...Kinda wish I'd thought of this before writing Second Chances but I could possibly retcon stuff or just use the idea in a different story.
But the idea of him reverting to that form while sleeping or when he actually feels fully at ease/relaxed (as compared to always being on guard and putting on a brave face in Safe Haven) is...intriguing.
(It would also kinda explain the size difference, it seems to me that compacting himself to a smaller size would be easier than making himself huge. But that's getting into "the science magic works the way I say the science magic works" territory.)