Would you reconnect with an ex?

My ex unblocked me recently and sent me message on ig.
I was the one that wanted to break up , he was mad after hearing all my complaints and blocked my everything. (It’s been half year) I torn off two pictures of him and uploaded them on the ig account. (I have like four accounts and that s the one he sent message to)
I’m not sure what he wants but he called me by the intimate name on my birthday.
If u were me , would you reply? And why?
Would you reconnect with an ex?
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