I am not dating, but I do have a new job and met new people. Generally I tell them about my characteristics - I like to think deeply about certain subjects, I feel strongly about fairness and justice, I take sensory breaks, etc. When it's time I mention I'm ND and if the subject comes up and I the circumstances are right (still fairly rare), I'll disclose that I'm Autistic. On the other hand, I have a friend who owns her own business and is dating and she discloses that she's Autistic pretty much from the onset. So far, so good for her. Moderation is good.
As always, context. How much is that guy serious and how much is he sarcastic. How often is "sex" more closely related to "love" (or affection) for men than for women - by nature or nurture (cultural). After decades, my NT husband knows not to tease me generally, but he still does. Sometimes I can laugh with him (yeah, right!) and other times I am offended (no way!). Perhaps you've had other red flags with this person so the context has already been established. In any case, good practice to check it out.