What do you think he might have wanted to ask me?

Me and this guy have been talking about a month now and it was going well. He wrote 3 days ago saying he wanted to ask me something. I wrote back asking what he wants to ask and he opened my message but didn’t reply. What do you think he wanted to ask? Could it be possibly me being his girlfriend and he lost his nerve or do you think it could be something else?
What do you think he might have wanted to ask me?
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