If she asks whether you are married, it's a good start, when she asks about your bank account, it's a bad start, and if she reaches for your zipper, who cares what sort of start it was!
Seriously, if she will talk with you, why worry whether she is 'interested' just respond to who you are with and show them that you are interested in THEM.
Women need love, men need respect.
If you feel that you could LOVE her, and she seems to be able to show respect.
Go for it.