Being accused by my crush!

So this boy i like added me on sc and i added him back. He straight away asked me to do him a favor. When i asked what it was he told me to take down ‘them tiktoks’ . Now for context one of my friends posted a tiktok of this boy and his friends with pictures of them from their Facebook pages. However i had nothing to do with it. Another one of my friends (who is a boy too) told my crush that it was me posting the tiktoks. When i told my crush that i didn’t post them he just left me on opened- he clearly doesn’t believe me.

Please can someone give me advice what to do to make him understand that it wasn’t me ?? Much appreciated