In a previous scene, she was digging in her purse and complained to EJ she couldn’t find her phone. She probably left it in that room earlier, when she was “talking” with Nick. Wonder why Will hasn’t noticed the pen in his back pack?
But I hope she had enough sense to record her and Nick’s conversation and that is why she paniced when she couldn’t find her phone. And I thought she acted funny when she got it off the table.