He sent me a broken heart emoji?

My ex (of 2 weeks) sent me a video of him in the car showing his empty passenger seat with ":/💔" I broke up with him because he was not priotizing me and being shitty and acted like he didn't care about the breakup. I ignore the snap, but should have I ignored it? Because he hasn't said anything or texted me since the breakup.
He sent me a broken heart emoji?
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