She just wasn't interested bro. I just don't enough time in the day to make a thread for every girl that rejects me
If she was interested, she was with her friends as she walked by so you didn't engage the group, win over her friends and they usually leave you both to it if she can tell she is attracted to you. having wings and not being solo would help with her friends too...
Takes a little more 'game' that what you just did, you just thought the mutual height would seal the deal for you, but here comes a point where you should attract her, as in get to know her or even escalate physically/non verbally.