I am single and have never been married, so I cannot imagine what it would be like for a couple contemplating divorce and the pain of going through with it.
The Bible does speak against divorce in quite strong terms, but for those personally affected by it, their choices are never that simple. In an ideal world, a couple would work hard to resolve their relationship issues, but we know all too well that life is not always that easy. Some have suffered infidelity, psychological and physical abuse, or even sexual and financial exploitation.
Fundamentally, the Bible teaches us to love God and love our neighbour. That sums up the law and the prophets. But no matter how much we love a person, it is difficult to re-establish trust once it has been seriously breached. Sometimes the best way we can show a person that we love them is knowing when we have to let them go, to give them the freedom to rediscover their lives and make their own choices. It is a lot more complicated when there are children involved and decisions have to be made that take into account their best interests.