Most relationship problems compound from things unsaid. Annoyances stored up. Hurts unaddressed. Concerns swallowed to avoid conflict. The compounding produces resentment that's much harder to resolve than the original issue would have been.
What 'telling sooner' looks like
'When you said X yesterday, it landed badly for me' (within 24 hours). 'I'm finding our weekly catch-ups draining; I need to shift the pattern.' Brief, specific, said early.
Practice low-stakes early conversations. The relationships that survive honest small conversations are the ones worth maintaining. The ones that don't were going to end anyway.