grow apart
1. Literally, to grow and move away from something. Wow, those bushes have really grown apart since we bought the place.
2. To experience a lessening of emotional intimacy in a relationship over time. Of course I still care about Ed—we've just grown apart over the years. We hardly even talk anymore.
grow apart
(from someone or something) 1. Lit. [for things] to separate as they grow. These trees tend to grow apart from each other as they get bigger. They need to grow apart so they won't be too crowded.
2. Fig. [for people] to separate from one another gradually. Over the years, they grew apart from each other. Ted and Sharon grew apart and saw less and less of each other.