Thread:XGryffinpuffx/@comment-24378197-20180312111235/@comment-34296592-20180312112030

It was in a diamond scene. I'm not exactly sure which one, but it was either their date at the restaurant or their night-time walk in the desert. He said that his dad calls him "Mateo".

He didn't say exactly "my real name is Mateo", but as that takes longer to say than Matt, I think it's safe to say that Matt is his nickname.