Can't believe I fell for it - again

I hate the freakin' bait and switch on dating websites. I put a profile on one site and apparently it has about twelve sister sites so I magically got put on all of those. On one of them, a perfectly reasonable looking woman (most of the women who "send me messages" are too amazing looking to be real) wrote me a note and then seemed to write me a second note - nothing too outlandish in them - like "Love your photo" since the photo I put up (specifically for this reason) is one in which I can barely be seen (and it is not an example of good photo art). But the only way I could respond was to pay for a membership. Which I did. And of course, no more messages. Sigh.