We understand you're upset about this whole thing. Hopefully now that you've had a chance to read a bit about these scammers and who was behind scamming you, you'll begin to understand that this wasn't really something you could have foreseen or even prevented because you just didn't know there were dirt bags like this living on the earth. You might want to think of it as a terrible accident. You were in the wrong place at the wrong time. You can't make this mean that you are somehow bad and wrong. When you stop blaming yourself, it will get easier. For this scammer, it was just a job.
So, now there are important recommendations: Number one on the list, do NOT communicate with the little maggot ever again . . . unless it's to tell him to go f* his goat - when it's done with his mother. No, don't even tell him that. Just ignore all his attempts to communicate with you. Block his calls, texts and emails. I fake an email bounce back to them so they think my account is closed. He will threaten you with anything he can think of, if you let him, but he's impotent if he's ignored. He will go away.
Next, snap out of your funk long enough to post his email address, username and profile from wherever he found yo0u at. You are not the only woman he's scamming. Give his other victims the same chance you had, to find him out before it's too late for them.
Maybe someone did tell him he was posted here - no one should but people don't read first and do it anyway - but that doesn't matter. African IP's are blocked here and it's difficult for scammers to get through, but I personally like it when they do. I love to tell them exactly what I think of them. Never-the-less, we don't want them learning how to be better scammers by studying the mistakes they make and how we catch them.
That said, why do you even care if he knows you posted him here? Are you afraid you'll hurt his feelings or offend him?
He cannot post anything here that would harm you. You are 100% safe. He's never going to come out from behind his computer in Africa. He's a puny boy, a coward and a moron with the equivalent of a elementary education. All he did was follow a script to scam you. And he probably wasn't even alone. These guys work in gangs.