don't be up front with it. you kinda wanna avoid doing that imo.. and at this time. i understand it's pretty annoying/frustrating because things are going pretty slow, but there could be a number of reasons why.

i'm getting the feeling she's just keeping you there on the side, no offense, but just as a guy to have. not be friends with, but just as a security thing.
don't feel too bad if this is the case.. i've done it before and didn't even know it for a pretty long time...