It gets discussed a lot on MN.
The topic often crops up on 'relationships' threads started by women who are finding their DP's behaviour difficult, strange, abusive, whatever. Someone will always come along and suggest that he might have ADHD, be autistic, or have some random mental health condition, and then lots of other people will respond to that by saying it might be an 'explanation' but it does not give someone carte blanche to be obnoxious or abusive.
Nobody is told that they have to put up with it. The OP will be advised that in fact she does not have to stay because he is neurodiverse, and she should definitely LTB. Other people will also point out that you can be both neurodiverse and an abusive bastard at the same time.