Marge - I relate to awkwardly interacting with others due to being in my own world, but being in my own world being a normal, fun part of my personality where I can hum, clean, do stuff, be on the go and not fully “interact”. I also relate to enjoying textures of things, and enjoying the process of organising and arranging things, and the desire to appear as positive/polite/be in my own head even when the situation might need a more nuanced approach, but I’m not aware. I think Marge is autistic, she has friends but is a bit of a loner and seems to stand out, and she has sensory and social meltdowns.
I relate to Lisa with the parts where she breaks down before mentioning issues in a calm way, likewise with Marge. They do that a lot during the series. I love Lisa as a character.
I think Marge shoplifting that one time, and having all the information play in her head, is total autistic stress, and the other characters probably didn’t understand. For Marge, cleaning is her special focus and relaxed her, but with the social pressures and sensory overwhelm building up, it got to bd too much in that episode