AITAH for turning the movie off?

My girlfriend and I mentioned we wanted to have more quality time together without using phones etc. We said we'd go on more dates but also have more nights in where we choose a movie to watch and get popcorn and other snacks etc and put our phones in the bedroom.

At the weekend we each chose a movie and my girlfriend kept picking her phone up and scrolling social media. I asked if she minded not using her phone since it was supposed to be the point of us spending time together and not using phones and pointed out we agree to put them in a different room.

She said she's still watching the movie so it’s fine. She kept picking it up again and scrolling social media so I paused the movie. My girlfriend said that's not necessary and to not pause it as she’s still paying attention but then asked questions about the movie that had already been answered so u pointed out she’s clearly no paying attention.

I asked her again if she'd stop using her phone and she said she wasn't using much. Around 5-10 mins later she pick her phone up again and scrolls social media. At this point I turned the movie off and said she clearly wasn't interested.

She accused me of ruining the night by turning it off but I just pointed out she obviously didn't actually care about watching the movie since she spent more time on her phone. She just repeated I didn't have to turn it off and that it was me who ruined the night.

AITAH for turning a movie off?