Answer Question
If your ex-boyfriend only friended you on Facebook (and has not sent any messages), then he may just be interested in reconnecting on facebook, to see what you're up to, and / or just to have another friend to his facebook. If he is not in a relationship, he may be looking to reconnect, but would wait for any interaction from him with you to really figure out what his intentions are.
I have a contact in messenger constantly in and out of active mode?
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