Care can become tiring even when the affection behind it remains steady.

Fatigue and love are separate systems, and one running low says nothing about the other. Being worn down by the lifting, the appointments, the broken nights and the constant small decisions does not mean the feeling underneath has thinned. People assume it must, which is why tiredness in a caring role so often arrives with guilt attached. The affection can be entirely intact while the person carrying it is running out.

If this is your situation, let tiredness be a fact about the work rather than a verdict on you. Saying it aloud to one person who will not argue is usually what helps first.