In life we often have loose ends in our story. Nothing is really resolved. Things go on anyway. People come in and out of our life and we don’t do much to hold them because we are distracted or don’t care that much. Events come and go and we mean to participate again but we have a knee injury or time goes by too quickly to do it again. So much is started and drifts away. Much is said but not done. We are busy and let things be. We follow up on thoughts and ideas and sometimes, we don’t. In more recent fiction this is shown and called an open endings toan event, thought, idea. We don’t know what happened to that person and what changed her mind.
However, in memoir people and events once discussed need to be tracked and finished in some way. We can finish the person’s place in our life by saying “nothing was spoken but we knew we wouldn’t meet again.” That takes care of her. Or we might say “Once our children were grown we found we had little to talk about and went our different ways.” As you become a more seasoned writer,you can occasionally add a situation that has no ending. This takes some density of work and experience writing.
Make sure what you start you finish somewhere in the manuscript. Tidy ends make words on the page seem morereal to the reader. You don’t want your reader pondeing overr what happened. Gaps of what happened will slow the reader down and create a chance that the reader will stop reading. You want the reader to ponder the questions you create on purpose and pause over ideas that you choose.