Guys, My Ex and I broke up 3 weeks ago, he blocked me saying it would help me move on, however I noticed that 2 weeks ago he unblocked, why?

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We we're in a relationship for 5 and a half years. 1 year LDR. He's supposed to go home in a few months. He broke up with me so suddenly. We talked about our issues for a week then he ignored me for another week and then called me to end it - blocked me then.
Guys, My Ex and I broke up 3 weeks ago, he blocked me saying it would help me move on, however I noticed that 2 weeks ago he unblocked, why?
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