From Longman Dictionary of Contemporary Englishgrow apart phrasal verbSEPARATEif two people grow apart, their relationship becomes less close The couple had been growing apart for years. → grow→ See Verb table
Examples from the Corpus
grow apart• Instead, it was suggested the couple, who married in their early 20s, had simply grown up and grown apart.• Virgin and Coutts had long been growing apart.• Such barrenness is the inevitable outcome where two people are growing apart and out of love.• He said he and wife Brenda had been growing apart for at least a year.• Work-inhibited students have not grown apart from their parents and become independent. 