Why do my ex boyfriends always come back to ask about my dating life?

This happened to me not once or twice. But every man that i’ve dated has always found a way back in my life after months of breakup like i’m talking 6-8 month and they come back asking me; if i dated another man or if i went on dating apps? Its so confusing like why do men care especially after almost a year of breakup🤣 What’s the purpose of this question i’m just trying to understand
Why do my ex boyfriends always come back to ask about my dating life?
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