I guess he will not come back here and tell the truth

Or he can come back with many proofs of chat and try to convince us that he is not guilty and only wants his money. But loaning money to someone on the internet without us knowing who are they is a big mistake and a big NO because how we can know they will pay back the money to us? Even we know that person, that is still not a good idea. Hopefully, @OP has got his lesson and not doing again in the future.