My (26M) girlfriend’s (22F) cat just died. What can I do long distance?

Hi! Yesterday my gf’s cat died. Her mother called her in the morning, while she was at my house. At that moment I consoled her and we stayed together, we had breakfast and there were even moments of great laughter. In the afternoon we had a movie planned with our nieces, I knew she didn’t want to cancel it. She had a good time, she had fun although there were moments when we were alone and I stepped aside to hug her because she couldn’t contain the cry. When we finished, she insisted that I return home or stay with our nieces, but I chose to travel with her to her neighborhood, two hours away from mine. I wanted to give her company as much as possible. When she arrived home, she sent me a message and I replied her, sending strength.
We don’t use to chat too much, although we send memes, we have a Spotify playlist and also a Google Drive together for planning. It is not normal to ask each other ‘how are you?’, because we are quite independent when it comes to that. I know that I can’t do anything for her loss, but whenever we are far away and I know that she may be sad about some event I start to think if I could do something, it makes me sad to know that she is sad. I dedicated a song to her and sent her memes, but apparently she is away from her cell phone. I know I walked her home last night and sent her strength, but I still think a lot about her and her sadness.
Thanks for reading. Just looking for any advice