Someone I recently started dating flew home to be with their family

And their grandma died. I obviously believe them but I barely hear from them anymore, which is understandable since that's a huge thing to happen. But like, do I sit and wait for her? Or just move on? I'm really interested in her and really want something to happen, but I can't force it. I texted her to check in 3 days ago and she responded favorably but that she's been busy and spending much more time with her family.

We were texting kinda regularly after she went home but it dried up almost completely after she lost her grandma. It's been a week since then. And we matched on a dating app a month ago.