We have more important things to tend to right now.
You believe all bad things will always tend to be as they have been.
He had a few things to tend to, and was happy to deal with them alone.
These things do tend to take a while to work their way out.
But all things tend to wear out, break down over time.
But bad things tend to happen at the worst possible time.
And it may never go away completely, as these things tend not to.
Even the things he did right tended to come out wrong.
You know how these things tend to assume a life of their own.
That's fine when things tend to keep moving in the same direction.