Need some help! Would you consider this sign of interest?

What does it mean when guy cares about my big life events that I’ve shared on social media when we’re barely even acquaintances?

He has replied to my story updates that I’ve posted about my big life events.
This is the third time that he’s sent me congratulations or offered condolences.
we user to talk casually in the DM’s months ago mostly initiated by me. Other than that we barely know each other.
Updates
+1 y
Anyone:)?
Need some help! Would you consider this sign of interest?
Post Opinion