From my experience, there are similarities. But it's best to have as much compassion and understanding for the Autistic partner as possible, even when their behaviours are putting you through hell - they really don't mean to, they are struggling more than we neuro-typical people can ever really grasp.

But of course look after yourself too, and get out of harm's way - I recently separated from my Autistic wife and I've never felt better - physically healthier, happier, calmer, it's magnificent! I spent 11 years trying to relate and do my best, but I failed so much and suffered greatly. I believe she suffered too despite her best efforts. My ex-wife didn't even know she was autistic until 8 years into our relationship, then everything made sense - but the damage was done by that point.

Relationships between an autistic and allistic person can work, but it's way harder than just autistic/autistic or allistic/allistic. That's why my personal opinion is that autistic people should date other autisitc people, although my opinion has made autistic people angry in the past, like I'm saying they CAN'T date allistic people - I'm NOT saying that, I'm only saying it will be much harder to date an allistic person, and who wants relationships to be very hard and stressful? Not me, I've been there, done that!