Am I overthinking or does him reposting a video of just us mean something?

He's my first ex and first love and i'm his too. We dated years ago and have reconnected like 2 years ago but have been hanging out quite a bit recently with our mutual friend to work on a passion project. The last few days we hung out with our mutual to work on it together and he posted a vid of only me being silly and I also posted a vid of him being silly and then we reposted each other's posts. (this was all on our instagram stories). 2 weeks ago we hung out alone (which 1. we've only hung out once alone since reconnecting and 2. he's never been to my place) at my place and I did a little vlogging and posted the short vid on instagram. I @ him and he commented on it. Now, yesterday night he reposted that post on his instagram story at night.

I'm not sure what to think.. he doesn't repost old vids like that of other female friends or even male friends out of the blue unless they repost first (which even then, he doesn't always repost it)

Am I overthinking or does him reposting a video of just us mean something?
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