Confused?

So my ex broke up with me about 2 months ago, and about a month ago, I put the offer on the table to be friends with benefits, to which he declined. Now two weeks ago, he asks if the offer was still on the table. I only have 2 bodies and I didn't want to increase my body count but I still want sex. I think I'm over him, it's just some feelings are still there. What do I do? I know it's mentally unhealthy but If I'm not getting it from him, I'd be getting it from someone else, and I'm not for that.