The phrase "were intimate" can be replaced by several synonyms that convey the same meaning. Some of the most common synonyms for "were intimate" include: had sex, made love, were romantic, shared a moment, became close, grew intimate, were affectionate, had a fling, hooked up, or had a tryst. Each of these phrases implies that two people shared a deep connection, whether it was emotional or physical. It's important to note that while these phrases are synonyms for "were intimate," each one may carry a slightly different connotation or level of intimacy. Therefore, it's essential to choose the right synonym depending on the context and intended meaning.