What does it mean if an ex boss (now “friend”), messages you to tell you her grandpa passed away?

She wasn’t my boss for very long but we text. I am usually the one to text her first. What does it mean if she did it this time, even if it’s about something like her grandpa passing. She didn’t need to come to me about it, she’s married
What does it mean if an ex boss (now “friend”), messages you to tell you her grandpa passed away?
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