You have found your way to the site that will help you help yourself. A site that assists in keeping you from committing another cruelty upon yourself. Consider the experiences to date that have brought you to this point. Your quest: to be correct, satisfy a woman's demands, societal pressures, and keeping her in house and home, have now driven you from yours. The opportunity before you is to purchase a talisman that serves as both a deterrent and a solution to your momentary lapse in judgment.
All of this advice may become somewhat academic over here when (and if) cohabitees are given property rights (the government's proposals are to be published next month). Indeed, The Times suggests in this comment article that such rights may in fact encourage people to get married. The main argument of the article is actually that any new law should put the interests of the children first. I particularly liked this:
Too often divorce today is about property, lifestyle and spending money. Recent huge settlements have focused on the trivial and the dishonourable – who gets what, how lavish was the lifestyle, how greedy are the claimants. Such cases overlook the real damage of divorce: the hurt of the children, their loss of opportunity and the breakdown in parental relationships.
Food for thought.