AIO: How tf do I deal with this

The girl I’ve been talking to for the last year has become very fond of a Streamer of a game I introduced her to and have been playing with her for almost a year. She started by watching his YouTube, then his streams and now I was out of town for a week and she’s become one of his moderators and they follow eachother on Instagram and she has him added on discord. As much as I’d love to like it cause he’s an awesome streamer to one of my favorite games She didn’t care to tell me about the moderator or social media following It’s just kind of happened. The only time I mentioned anything about it she said if I’m playing games for 2 hours she’s not gonna just sit around and be bored.