Why did Ex unblock me after 4 years of no communication?

Anonymous
So my ex unblocked me after 4 years of no communication whatsoever. He hasn’t reached out after unblocking me and its been a couple months since i noticed he unblocked me. the breakup was so toxic so he blocked me first cause i wouldn't abide by his terms and conditions any who he's married now so why would he unblock me and message my brother and father and invite them to dinner.
Why did Ex unblock me after 4 years of no communication?
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