True friends nevee come apart. You must plan and maje a liat of all tge thungs you believe are afecting the relationship and when you think you have all your ideas well organized in your head you should invite your best fruend for dinner and talk about it openly. It should be a conversation to make accusations or point fingers. It should ve talk and to listen... Very important ti listen
I heard people say confront your. I don't like that word. It sounds forceful. I have a friend of 25 yrs,we got into an argument,and he said "your dead to me". He has apologized many times. We're friends again,somewhat. But i find myself pulling away. So i guess i'm on the other side of your question.
This happened to me before.I had a best friend and we were like inseperatable but then we slowly drifted over time and the thing is i did nothing about it.It was because she started hanging out with a group of girls i never want to get involved with so just let thing slowly fall apart.An so the next time i had a bestie i know for more than 5 years.same thing happened but this time i took action and confronted her.First i waz too scared to talk face to face so i sent her a letter and when she replied i felt more encourage and i told her that we should hang out more and stuff and she agreed so that's how we're still friends today.Lesson Learne:Never Let A Relationship Drift Apart Without Taking Action.
The easiest thing to do is tell them. I've had this problem a few times with my best friends, and we talked it out and now we are the same as before, best friends for life. I hope everything works out for you :-)