Would it be wrong of me? 10 points please help?

Okay, well, my friends and I are HUGE Taylor Swift fans. And one of my friends, Uhm I'll call her Linzy, Linzy is going to a Taylor Swift concert tonight. Linzy's older sister, who is also one of my best friends, I'll call her Nicole, is incredibly jealous. So there's a like 90% chance my dad is going to get me tickets to a TS concert so I could go this summer in like july, he could go,, and like 3 of my friends. Well I wanna invite Nicole so she's happy (and i would anyway), and another girl who I'll call Gracy and another girl who I'll call Meagan. So... would it be wrong of me to not invite Linzy, because she's already going to one tonight? She'll be upset, but if I do, then Nicole will be mad that Linzy can go to 2... plus, Gracy and Meagan don't like Linzy. So, if I don't invite Linzy, would I be mean?