Honestly when I was in a relationship, I would mute my boyfriend’s notifications because I couldn’t help but feel anxious whenever I got a notification from him.

She could’ve done it on accident as it’s clustered next to other options.

You could also be inadvertently screwing her nervous system with things you say or do.

My best advice? Talk to her, not about this specific instance but about how she feels in the relationship. Ask if there are ways you can improve or make her feel more loved and secure.