Being friends with Ex FWB?

Is it possible to be friends with my ex friend with benefits? We were a thing a few years ago and when he went awol I was pretty hurt. Then he popped back up trying to reminisce yet apologize about the past. Come to find out he had a wife. He tried talking to me twice and I shut him down when he tried to talk sexual. I recently checked in on him bc when we last spoke he was going through a pretty rough patch. It was nice talking to him because he's always a cool guy to talk and joke around with. He's also in the middle of his divorce and is out at sea (he's in the Navy) but my boyfriend doesn't like him and doesn't even know i text him sometimes. Is it possible for me and him to be friends? Is it okay?
Being friends with Ex FWB?
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