Need advice on my friends with benefits?

So the guy I've been seeing for a while now, it seems like he basically is using me for seggs right. He's a good looking dude and I unfortunately just found out he has a wife so I'm trying my best to stay away from him. I'm just wondering why won't he leave me alone and find someone else? There's been guys in the past who easily left me alone but I wonder if there is a reason he keeps coming back or is he just too lazy to find another girl to cheat with
Need advice on my friends with benefits?
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