The best friendships grow in the same direction without growing identical.

Closeness does not require sameness. The friendships that survive a decade are the ones where both people kept moving and neither required the other to match, so the shared direction holds even as the details diverge. Demanding identical taste and identical choices is how a good friendship gets brittle.

Notice where you have been quietly disappointed that a friend chose differently. Ask about it rather than judging it. Interest in the parts of someone that are not like you is most of what keeps a long friendship from thinning out.