Sociopaths make for relationships without any real intimacy in the best case scenarios. And they make for abusive, Machiavellian and heart wrenching heartbreaks in the worst case. This article tells you how to spot a sociopath.
Unsolvable relationship problems: what are they and how you can tackle them.
The full list of high quality men traits.
Einstein (dumb) letter to his wife
Start here for the relationship overview
This article lists of all the major relationship problems that lead to breakup. And then links to the solutions.