Can I get her back??..

[Ahoy]

Sounds like she is trying to connect with you in a friendly way. I'm not a vet, so I can't say what the "right" thing to do would be. But in my case, I try to be friendly, so I might respond to a text like that by saying -- "No problem -- I just didn't hear my phone." It's the truth, right?

Anyway, NC sounds like it's working because now she is trying to make sure you're still there for her in some way.