Dyslexia is hard, spelling is actuslly not correlated with general intelligence or even with competency in English - although it helps with the latter. It really would be a sore point for someone like Jade because I imagine she has felt really stupid at times and probably others have drawn similar conclusions based solely on her spelling, when it's just not accurate.
It must be frustrating to not be able to communicate effectively, so I feel for her and totally get why she'd feel extra defensive about it if she's been copping flack for it literally her whole life. Admittedly it does make it more difficult for her to make money through social media which is a shame, but there is great earning potential for her as a PT and luckily she is pretty skilled there. And really that's at least a "real" job that everyone understands, so she's better off.