Way to Go! I am so glad that you stayed in and finished out your last party. That is such an accomplishment, because rush really can be frustrating.
This must differ at each campus, but at most of the schools I know of, the sisters are not supposed to ask you what other parties you are attending. This is to prevent the pressure and discomfort that you felt when YOU were asked. But it's good that you answered honestly, and in my opinion, at this point it can only help you. Since the sisters know that they will be #1 on your pref card, they can count on you if they put you in the top of their bid list. Every sorority loves to be able to say "all of our girls were on the top of our bid list".
Every Panhellenic Council I personally know about has some sort of procedure in place for a rushee that does not receive a bid. Usually you will get a phone call from your Rho Chi BEFORE it is time to go accept bids, so you don't have to show up. Also, often this is when the Panhellenic reps will let you know about sororities that want to offer you a snap bid. And this isn't always the "bad houses" either! You would be surprised to find out that every chapter on every campus has snap-bid at one time or another... maybe they were counting on a legacy and she didn't pref them high enough, or maybe they cut too many girls during Round One or Two and then had a short invite list for the preference list... so no matter what happens, keep an OPEN MIND!!
I hope that your wish comes true tomorrow! Please be sure to let us know how it turned out.