So this girl and I go out three times in a week. I have known her for a week. And we end up having sex after the third time. She is 24. Not on birth control. She just told me to pull out. Which I did. The next day I asked her how many people she had slept with, her answer was 12. She said her longest relationship was for 10 months. She seems really flirty with every friend of mine she meets. Gets blackout drunk everytime we go out. She seemed kind of normal from first meeting her. IE...college degree, good job. But I really don't know her or any of her friends. She just moved to my city and knows one girl. So I also kind of feel like she is using me because she is lonely?