Krusty, you shouldn't reproach yourself for looking for some happiness - your past life sounds far from ideal, so I don't think anyone would blame you for making a break. You have more than done your duty by your wife and your children - go, do it properly by having a formal separation in the first instance to give yourself some breathing space, then you can go for divorce after two years. Go see a solicitor and get some practical unbiased legal advice, as to how this would leave you financially, and look at the options. Don't rush into a new relationship on the rebound, especially with your depressive lady who (without being unkind) might put you out of the frying pan into the fire, in your current state of uncertainty. A bit of space on your own, to regroup your energies and readjust your priorities, would do you a lot of good. After a few months of no-strings friendship, if you still fancy this other lady, you could look to take it further - but I suggest, not yet. You sound like you have been a very patient husband and father, taking more than many men would put up with.