How do you know when it’s time to break up? Here’s the research

  Christmas may be a time of giving, but it’s also a peak time for break-ups. Facing the prospect of spending yet another festive season with their romantic partner, many people start having doubts about their relationship in the run-up to Christmas. This is even the case for marriages, with formal divorce applications tending to peak in January.

  But knowing whether it is time to break up can be extremely difficult. Should you try harder to make the relationship work, or have you wasted too much energy on it already?