I feel like I'm losing her, what do I do? Help please, all answers welcomed!

TheShyGuy
OK I'm going to keep this as short as possible. Me and this girl have been texting a lot for 10 days straight. It was going very well I felt like. We got flirty a bunch of times: For example, I said I would buy her this football jersey and she said "I'd wear it ;)" Another would be one time I joked about her and her friend marrying each other and she said, "Will you be my best man? ;)" We've been having texts like these non-stop. We go to the same college and met through Twitter. I got her number when she tweeted me late at night saying "My life sucks :( please make me feel better." Safe to say she was interested?

Lately, the past 2 days we barely talk now. She just had an amazing weekend partying and the parties I went to were complete garbage. I'm starting to feel like maybe she thinks I'm no good Because she's hot enough to go to these awesome parties while I struggle to find any (shes also in a sorority and I'm GDI). She's been hanging out with her girlfriends a ton so I don't wanna invite myself in their group. I need to hangout with her first. I don't know where to even start with texting her anymore. I was thinking of giving her a good morning text like usual but I don't wanna straight up say, hey we should hangout this week. I feel like I need to find something to talk about, get her to flirt a little then break out the "its about time we hangout."

Idk I'm just so lost and feel stumped. She was so into me it felt like at first now it feels like I'm fading, I lost confidence. I didn't text her all day Saturday Because I wanted to see if she would text me first for once, and she didn't. She sent me a good morning text before when things were going well. I think we burned each other out. What should I do? Text her straight up to hangout or try engaging in a conversation then ask? Also, you think her friends are playing a role? Thanks in advance, I'm sorry about the length of this, all answers are welcomed! I will give feedback.
I feel like I'm losing her, what do I do? Help please, all answers welcomed!
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