If your iphone messages turn green does that mean that the person blocked you?

I know it can also mean they're using another non iphone and disabled imessages. But if you're blocked, is there a way of knowing if you use an iphone? I want to find out if this person blocked me because we had good correspondence before and now the messages are green and this person shut off their social... show more I know it can also mean they're using another non iphone and disabled imessages. But if you're blocked, is there a way of knowing if you use an iphone?
I want to find out if this person blocked me because we had good correspondence before and now the messages are green and this person shut off their social media account, I thought I was blocked. This person normally answers quickly but said his phone broke or something.
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