make matters up

I have sent Charles to town to make matters up if he can, for I do not by any means want her here.

And whatever breaches broke out in families, He was the man to mend all, And make matters up again.

Do you think Harry and Viola will ever make matters up, and be as they were in the good old days?

You will have harder usage than any you have ever yet known, I can tell you, if you come not into some humour to make matters up.

Dear Captain Waverley, try your influence with my father to make matters up.