I think it depends how much emotional connection you think you need. And also what that would look like, and what you can do without.
Maybe think about your list of what constitutes emotional connection. Is it asking about your day? Is it remembering things that are important to you? Is it saying you look beautiful/sexy/pretty? If compliments about your physical appearance are not of importance to you, is it telling you how smart you are? How good at your job? What a great mum /kind daughter you are (if you are a mum, daughter, etc). Are you self assured enough not to need reassurance? Do you need someone to empathise or would it be enough if they listened and took on board what you said? So rather than intuit x might cause you to feel y, would it be OK if you said when x happens I feel y, please can you be mindful of that (and they actually listened and took it on board for next time)?
In short what is on your list of essentials and what is desirable but you could manage without or mitigate that in some way?
Then I would examine whether there is anything that gives you slight cause for concern. Does he speak badly about his ex? Does he apportion blame to other people when things haven’t gone well? Does he sulk or go silent when he’s pissed off? Is he overly critical of others? Can he shrug off minor misunderstandings? Does he get bogged down on being seen to be right? Does he have a temper (if not with you then with anyone else?). Is there a pattern of falling out with people who he no longer speaks to (friends, family, colleagues, etc)? Can he accept when he’s in the wrong? Can he apologise? Is he easily offended?
I’m not saying one of those things would be a relationship ender on its own, but if there are a few of these little signs then pay attention as these will likely be huge in years to come. There can be a gradual unmasking brought on by external stressors and small things which we ignored in the first few years can turn into daily emotional abuse.
I don’t know your DP and I’m certainly not saying all autistic men should be avoided. My DP is autistic and he is working really hard to be a better version of himself. And I would say he is succeeding. But would I have gone down this road if I foresaw who he really was..? No, probably not. Not because of autism, but because all those little flags I described above and which I shrugged off, were waving silently at me. And I ignored them. DP was kind, attentive, great in bed, funny, outgoing, selfless in his generosity. So many traits you would dream of in a partner!
Go into this with a clear understanding, your eyes wide open, and a list of what you need. Sounds clinical, but I think if we had been more clinical and less swept along then many of us might not have set ourselves on the very difficult pathway that we have walked.