亲密爱人用英语可以翻译为 "intimate partner"。来源可能源于拉丁语 "intimus"，意思是 "内在的"、"亲密的"。

例句：

John and Mary have been intimate partners for many years.

翻译：约翰和玛丽已经是亲密爱人多年了。

Domestic violence often affects intimate partners.

翻译：家庭暴力经常会影响亲密爱人。

It's important to communicate openly and honestly with your intimate partner.

翻译：与你的亲密爱人进行公开和诚实的沟通是很重要的。