Ever had friends? It's how you joke and fuckaround with your mates when they are successful. Don't take it too seriously or read too much into it. Also, Jamie chose the people that cheered on her, which means she and Aria are closer than we know lol
We can shit on Aria for her living situation, financial decisions or streaming habits, rightfully so, but she's the last one to be called a leech or bottom feeder. She had plenty of opportunities to abuse in the past, to invite herself to some streaming and irl events, yet she never did it. If she is not personally invited, she avoids using connections or directly asking friends to get her a spot. It's one of the reasons why she is where she is with her streaming career, not using the potential that being friends with OTV circle brings.