Got to know again as in "He reacquainted himself with the operating instructions by re-reading the manual" It is also used to mean reunited as in "He was reacquainted with his hat when he found it under the table"

I haven't seen my cousin Mazie for many years so it was great to get reacquainted.

DEPENDS ON THE MISUNDERSTANDING, IF YOU WERE THE MISUNDERSTANDER THEN GO TO HIM AND MAKE PEACE AND EXPLAIN YOUR POSITION.. PEOPLE IN GENERAL GIVE OTHERS THE BENEFIT OF THE DOUBT AND IF ITS NOT TOO BIG OF A DEAL , HE MAY WANT TO GET REACQUAINTED..IF NOT MOVE ON AND DONT MAKE THE SAME MISTAKE IN THE FUTURE.

"I want a divorce, like my divorce from Cynthia", in the fall of 1969.

If you are just being reacquainted and friends don't push things and just take them from there - let him get used to the idea of being around you again. Don't be in such a hurry, there are no specific steps or set course - you two set your own and take things as they come.