That would appear to be the case. She sees 'just a friend' whereas he would like a closer more intimate relationship. This is an asymmetric relationship, and it will be somewhat awkward. In this case, she is not necessarily taking advantage of one, as much as one is setting up oneself for unfulfilled expectation.
Distance can be a self-defense mechanism - a way to avoid or prevent disappointment, heartache, or heartbreak.
One could simply express one's feelings and perhaps mention the desire for a platonic relationship, and let the chips fall wherever they may.
I've been in a similar situation as TSA, where women were apparently interested, but the interest was never disclosed.