Whenever I call my girlfriend it's going straight to voicemail?

Her phone isn't off! Whenever I call it's straight to voicemail so I text an asked her are you in a movie an she called me back Right after sending that text. It's happened the passed few days whenever I call it's going straight to voicemail an no one else who calls her has this issue we're thinking I should take my phone in? I have an iPhone but i don't know what the problem could be?

She is blocking you.

She blocked you…

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