So I have a question because I know the word oh means a lot of things?

So I don't know how this girl knows my boyfriend but she sent me a friend request.

I showed him who she was and her profile and all he said was oh so I don't know if he meant oh as in he was shocked or oh as in upset I didn't push the issue because I didn't wanna cause problems.

So I have a question because I know the word oh means a lot of things?
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