I'm all for withdrawing when necessary, for as long as one needs, but I hope you're open to the possibility that someday, someone might come along and surprise you. You just never know who's out there, and how or when your paths might cross.
Having said that, I can respect someone who has decided they're just done with all of it. There are other ways to fill a life than with another person. If you can be happy with that, more power to you.
I've posted myself before that in matters of the heart, you never know what will happen in the future. It's true. However these days I'm a bit preoccupied with survival much more so than the prospect of any relationship. A scenario I'd reckon that doesn't make me all that appealing to much of anyone. I'm also choosing to live in relative isolation....not sure if I'll ever snap out of that...but anything is possible!
So many love/hate dynamics....it makes life complicated.