Why wouldn't the next partner do exactly the same thing?
It's certainly possible but you will be better prepared. I was dating a girl and things were going great for about 3 months. Then out of no where I got a text saying she needed to step back from us and figured some stuff out. She had been contacted by an ex boyfriend regarding reconciliation. She had been with him and known him longer. More of an EMOTIONAL connection. Logic and reason would say it didn't work out the first time why would it now. So I wished her well and moved on. It stung but once you survive what you are going through now you become so much stronger and wiser. Eventually as we age people are more looking for stability. Most of the WS here are in their 40s and think this is their last shot at "happiness". So much of this is hormones, brain chemicals, mental illness and lack of understanding how long term relationships work.