First weekend back to college as a soph and I'm at this party with a couple of my friends. I was pretty drunk & high but so was everyone else. I was grabbing another beer when I eye this cute freshman chick who was with a friend of mine but she seemed bored out of her mind so I came over and introduced myself. Another friend comes by with his girl and he sort of finishes the winging and she seemed to be more interested after he fluffed me up. I brought her out of the party with a few friends to go smoke up some more when we started making out and sh1t. this went on for about another hour (i got her number sometime in the middle of this by just handing her my phone) before she said, "wait i'm sorry i can't do this because i have a boyfriend". I laughed it off and then told her not to worry and promptly walked her to her dorm, where she led me inside to her room.
Due to unfortunate circumstances or my lack of skill, I was unable to close but did run all the way to 3rd base and now I'm trying to figure out how to close this chick. I still have her number and she has mine but I feel like just texting her out of nowhere could come off as needy? Plus she could have also only hooked up with me because she was drunk/on her period
How do I approach her again and then close?