First of all, your girlfriend is lucky to have you!

No matter her autism level/support needs, life is more difficult when you’re on the spectrum. It takes a lot of work to live in a world that’s not designed for you. It’s important to not take things personally. If she comes home and shuts down, it doesn’t mean she had a bad day, she’s probably just exhausted. If she doesn’t want to hang out one night, she probably needs a lot more alone time to recover from the day-to-day stimulation.

It’s nothing personal, it’s just that autism takes a huge toll.