How long do ex's try ringing an keeping touch for? Do they keep stringing you along until they feel the need to not be intouch or until they prob find someone else?

Well, iffen it ended semi-amicably, it's a coup to tell his/her friends that it ended well and it's not uncommon at all for ex's to sleep with each other until they find someone else. My second wife and I kept touch for years as occasionally we'd borrow stuff back from each other and did have common interests developed over the years.
Seems like once you are out of the hormone-crazed 20s-30s, divorces to end end with a lot less strife and rancor...

To rate my answer if you like it.

As long as youlet them!! Don't let them that will keep them guessing and keep your head clear!!