AITA? My M21 Girlfriend F 20 Won't Stop Talking About Her "Hear Me Out's". It lowkey bothers me, but we haven't been dating long. Am I going insane?

For context, me (M 21) and my girlfriend (F 20) have only been dating for a couple days and have been friends for a couple months. I was on Facetime with her yesterday, she lives in a dorm with her roommates, and they we're talking about their hear me outs. I know they were only talking about fictional characters, but it still kind of bothered me. Is this normal, or am I overthinking things because we just started dating? Please let me know lol