Marisol, if I were in your shoes, I would want to find out the truth. Sit down with her one down day and say to her that you need to talk to her about something important. Tell her that you heard that she "allegedly said" this things about you and you want to find out if it is true or not. (Rush can be a very gossipy time, and she very well may NOT have said such things. Or, she may have said something, but it got twisted through the re-telling process. Such is gossip.) You will only know if you ask the source.

However, be aware of the posture that you take with her. Although you are hurt and angry, try not to be too confrontational or hostile with her (at least not to begin with). Everything that you have heard so far would appear to be hearsay, so give her a chance to clear it all up before you do anything that could be detrimental to your chances with other sororities at Rush. You want her to be open and honest with you and if you bawl her out to begin with, she will get angry and won't want to actually explain anything (this will be tough to do, but remember that your goal right now is to first of all, get to the bottom of what's going on, and she is the only one who can tell you what she said.)

Good Luck, have courage and I hope that you find out the truth!