I work for a behavioral health insurance company. My department is social workers, clinicians, and a few consumers (people that utilize the services we offer). One of the consumers, a perfectly nice girl, has recently been making me very uncomfortable with her questions to me and others, and with her loud phone conversations.
The topics she discusses (her health insurance before working there, telling an expectant mother about the kind of birth defects she should be dreading, etc.) She has repeatedly (and seemingly gleefully) asked me about my best friend moving away, the details of my recent breakup, and really presses me for personal information about my dating life. She will also tell me incredibly personal information about her medical conditions and her private life, which makes me even more uncomfortable. This is not behavior unique to her interactions with me, so I don't think it's her thinking we're closer than we are.

The last straw was hearing her loud conversation on the phone on Tuesday. She was discussing, in detail, a friend's sexual assault and the aftermath of it. I absolutely sympathize, but it is also absolutely none of my business and shouldn't have been discussed so loudly in a crowded office. I couldn't help but think of the person on the other end, and how they probably wouldn't like knowing their personal information was being broadcast to the office.
Due to her being a consumer, I am not allowed to be confrontational with her. Since my boss is on vacation, I can't bring it up to him, and she's getting really graphic and personal with her questions and conversations. Is there anything i can do to let her know how uncomfortable she makes me without being too aggressive or assertive?
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