Ex texted me after one year of no contact?

My ex texted me begging me to unblock him on social media and saying he hates not being in touch with me and wants to reconnect. I moved on and have no intention of reconnecting with him but feel bad for ignoring him. Is ignoring his message the best way to deal with the situation or should I let him know I have no intention of reconnecting with him.

Ex texted me after one year of no contact?
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