Yeah I wouldn't make a move just yet. A chick friend of mine is being put in the same position by this dude. I keep telling her that he's just putting her off so she'll want him more and she says "well it's working dammit."

It sounds like you genuinely don't care though, so that's the best way to go about it. Just keep in mind that at some point you will probably have to extend some kind of invitation but by then she'll be so worked up about you that it'll be cake.

Oh and btw this is not the way to start a healthy relationship, but it will at least get you some ass.