I do not know how your relationship has progressed, you need to consider the question of do you want to be with this man.
I am not sure what you mean by you haved dated three times, do you mean you have dated three men or do you mean you have been on three dates with your boy friend.
If you have an established relationship with a man then I would suggest that when neither of you are angry you need to talk and work through your differences.
I do not know what long term goals your BF wants you to drop or postpone . Even if something is a silly idea, I would say that unless it is very harmful to you or him then you should be gentle with each other and not crush each other's dreams.
Being with a person in a good loving relationship means you are looking after the person and are trying to help your partner be happy and well. Husbands / wifes should look after each other and try to make the world a better place for their partner rather than trying to score points over their partner (like she went to a nightclub last week so I am entitled to get drunk in the bar two times).
I would say that an aspie / aspie relationship can work well, my wife is autistic like I am. I try to look after her, she does her best to look after me. We get on well.
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Health is a state of physical, mental and social wellbeing and not merely the absence of disease or infirmity

I am not a jigsaw, I am a free man !
Diagnosed under the DSM5 rules with autism spectrum disorder, under DSM4 psychologist said would have been AS (299.80) but I suspect that I am somewhere between 299.80 and 299.00 (Autism) under DSM4.