Having some problem with a Girl ???

OK so I started living in my college dorm two week ago met a lot of people. I met this one girl and my roommate told me that she like me, so i talked to her we went out to get yogurt and play pool and the next day we went to a party where It was the first time we drink we had a great time and at the end we kissed (she kiss me first). Two days after i asked her if she wanted to hang out, she said that she doesn't want a relationship and is still taking to her ex. My friends told me to talk to her more but anytime I text her she barely reply back or don't reply at all. So i dont know what to do??????