I'm dating this 37 yr old woman who I see about once a week for the last 3 months. She is a bit flakey and cancels dates and isn't real good at returning phone calls in a timely fasion. I get the sense that she has someone else in her life, but she tells me I am the only person she is seeing (that she is a one man kind of woman). She told me that she is affraid of being vulnerable and that is why she acts the way she does. I know she was recently dating a guy that she works with in a different state that she travels to every couple of weeks for work. My fear is that she is dating him and me at the same time because of her vulnerablility concerns. Any thoughts out there? Should I trust this girl?