Does she want a relationship or am i just her **** buddy?

So I met this girl a week ago and we Hung out for like 8 hours just talking and walking around about 6 hours in she kissed me. The next day we Hung out for about 4 hours and then had sex and I spent the night the following night became the same pattern. We talk a lot and hang out some but it seems like we have sex a lot. I really like her and were going on a date in two days. But I get a give she may not like me as much as I like her and I wonder if she isn't messing with other guys?