Each situation is different but what you can say with a high degree of certainty is that someone who’s just fallen out of their marriage, who’s still in reconciliation negotiations, who’s still very influenced by their spouse, and who has been separated for a long time ‘just because’, is going to bring pain into your life.
Same goes for someone who’s not over their divorce and has beliefs that affect their ability to be committed.
But if you’ve filed for a fault divorce based on adultery, your spouse's live-in boyfriend will certainly help prove your case.
I personally know people who have gotten together while one party was separated, and in one case the wife refused to sign so they had to wait for it to lapse and got married as soon as it did a few years later, and in the other instances where it worked out, there was no faffing about with the divorce, Future Faking etc.
A rebound relationship can be a bad idea for many reasons—including your divorce.
We’re often scared (even if nothing has actually happened yet with a particular person) that we may be letting our last chance or even best chance saloon slip away.
We may be imagining all sorts of problems that may or may not exist or we’re rationalising our own boundaries, values, and even prior experiences of being in one of these situations (so knowing that we may struggle with the emotional consequences) and are thinking along the lines of, ‘Well…
One of the most common temptations people fall for when a relationship is ending is the desire to find a new love - Often these people have been unhappy and missing love, companionship and sex for a longtime, and so there's a real pent-up, unmet need for love.