How Do I Ask If We’re Exclusive Without Seeming Pushy? — Counseling Corner

Every Thursday we highlight a problem from a listener. We give our advice and ask other listeners to offer advice. Welcome to the Counseling Corner.

Dear Brain and Courtlin,

I'm having dating troubles and I would really love some advice. I met this guy online about a month ago and from day one we really hit it off. We talk and text all day, every day, and we've gone on quite a few dates and have gotten really close. The problem is that lately he's been tagged by a girl I don't know at various places like restaurants on his Facebook page and it's been popping up in my newsfeed. We haven't exactly defined our relationship yet, but I like him a lot and it seems like it could be serious, so I'm just wondering how to address the situation. Is it wrong to ask him if he's dating other people? How do I do that without seeming pushy? I just want to know if this will eventually go somewhere before I get too emotionally invested. Please help!

Liz