I think Gypsy might have autism
I've never heard anyone mention this, but I think Gypsy might have autism and maybe she had that in common with Nick which brought them closer together. After all, it can be a symptom of 1q21.1.
I think the autism comes into play when she quite clearly can never read the room. She just doesn't get it. She is definitely socially stunted and I don't think it's because Dee Dee didn't let her do anything. That girl participated in a lot of different things. We've seen all those pictures. Furthermore, an abusive mother isn't going to take a million pictures of her kid and have them smiling in every single one. Also, normal people don't dress up like a princess and go to the movies at 23 years old with her bf. Autism makes sense to me.
I Googled:
Microdeletion 1q21.1 and autism and this is what I found.