drift apart

Verb

drift apart (third-person singular simple present drifts apart, present participle drifting apart, simple past and past participle drifted apart)

1. (idiomatic, intransitive) To lose contact, to lose one's friendship or closeness.
   • We used to be good friends but we drifted apart over the years.
   • To think of what we've been, and not to kiss again, seems like pretending it isn't ending, two friends drifting apart, two friends but one broken heart1931, John Klenner, Just Friends