hi anna123.
i think you should just ask your boyfriend about this. if he gets frutrated and shuts down when you try to talk, you could send an email with your concerns and suspicions instead. i personally find emails less confrontational and overwhelming. also, there is time to really think about what the person is saying that way.
just be direct. nice, but direct. if he is on the spectrum, hints may not accomplish anything.
say that you want x, y, and z.
ask if doing a, b, and c would be helpful for him in knowing what you want from him.
stuff like that. you can't just say, "i want you to act more like a boyfriend." give examples like-- "i want you to check in with me every day."
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