Why does he still answer his ex?

The guy that I’m dating has an ex (they broke up about a year ago) and they apparently agreed to “keep in touch”. But she still texts him every few months and He responds. Is this a bad thing? I think she might be having a hard time moving on, because it’s always her reaching out. When they text it’s just updating eachother on eachothers lives. What do you think?

Why does he still answer his ex?
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