N'ọnwa Julaị afọ 2016, Middleton kwere James Matthews nkwa ọlụlụ, onye ọ ga-alụ n'abalị iri abụọ nke ọnwa Mee afọ 2017.
N'ezie, ụdị nkebi ahịrịokwu ahụ dị mgbagwoju anya bụ "Na July 2016, Middleton gbara akwụkwọ na James Matthews, onye njikwa ego mkpuchi na nwa nwoke nke okenye na onye nketa nke David Matthews, Laird nke Glen Affric. "