It's the way she's gently trying to console her tubbo husband with that hand that really did it for me.
What's a better synonym for how she looks that isn't too extreme? I think mousey is too perfect for her, I'm blocked. In the other one that looks exactly like Rick I used "flat-affected wife" to try to get a psych-meds blank look but it made her fat too so maybe it thought "flat" was a typo. This wasn't what I was trying to get, but this one is pretty funny because it created some fake French:
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