What does upset mean? Its a bit different if she’s concerned for you vs if she can’t be alone. My wife was concerned for me when I was playing Minecraft until 4am every night during a stressful time in my life. She can’t be alone when she’s in my office during the middle of the workday telling me ten different YouTuber’s life stories. :D

I hope you find the balance that you’re looking for. If your girlfriend feels more social than you, its not necessarily bad to have her call her friends or something. I regularly tell my wife to “call Susan” or something like that when she wants to talk about something that I don’t have any bandwidth for or interest in. As long as you make an effort to connect when you can and don’t neglect her, I think it’s a fair ask.