I married a man with autism.
I didn't realise when we were dating, in retrospect it was classic whirlwind love bombing. He is a kind person and he does his best for us, but there have been significant challenges.
He can't deal with illness, and so when the kids came along and one of them was significantly and chronically unwell I was on my own. For years. He did what he could do - which was work and pay the bills but he had literally nothing to do with hospitals and emergencies. It was is if he didn't care if the child lived or died - I now understand that he was so worried he just couldn't deal with the emotions he felt, but at the time it was, erm, challenging.
I have a lot of anger about that - he opted out of parenting a poorly kid. Who does that?
To be fair, he genuinely couldn't cope, and he didn't know he was autistic when we met, but, still, the bottom line is that he promised me in sickness and in health, and he had no right to do that because he is unable to keep that vow. But, then, he didn't KNOW that when he made the vow, and he didn't know we'd have a poorly child, and he didn't know he was neurodiverse.
I also recognise what Snootiest said about behaviour changing once the ring was on my finger. On our honeymoon I remember wondering what the fuck had happened to him, he changed completely. I barely recognised him. What had happened was the love bombing had stopped, he had stopped masking and I had married someone I didn't recognise.
So, I'd not warn you off because everyone is different and there are many positive traits to neurodiversity. But, I feel hoodwinked because the person I was marrying is not the man I thought he was.
Your partner is diagnosed and sharing that information with you. He's in a very different position from my DH. I'd advise you to have a look at the threads mentioned previously and have a chat with him about relationships and maintaining them and I'd have a look at the Gottman Institute's website. They have a lot about predicting relationship breakdown. That site has probably saved my marriage - DH recognises that opting out is what divorce is, he can't be married and not participate.
But, if I knew then what I know now I'd have taken longer to get married and I'd have done counselling with him beforehand and I'd have found the Gottman Institute and insisted that we prioritise relationship maintenance. It's a tricky, but not boring marriage.