Ex texting me at night while in a relationship?

My ex texted me at 3 am asking me the most random question ever in response to me liking a video about women liking older men and asking "why do girls like older 😒." He's in a relationship.

Updates
6 mo
Mind you, we haven't talked since January when he didn't have a girlfriend.
Ex texting me at night while in a relationship?
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