The awkward talk you keep avoiding is usually the one that saves the friendship.

Avoiding the conversation feels like protecting the friendship and is usually what wears it down. The unsaid thing does not stay still, it grows quietly into the reason you stop suggesting plans. Meanwhile the other person often has no idea anything is wrong, so they cannot fix a problem nobody told them about. Ten awkward minutes is almost always cheaper than six months of drifting.

Say it in person if you can, early in the conversation rather than at the end. Lead with what you actually want instead of a list of what they did. Expect it to be uncomfortable and expect it to be over quickly.