More than that, relationships are personal, which means no two look or operate in exactly the same way. That said, there are some mistakes that seem to raise suspicions and hackles across the board, and these 15 people are sharing some of those common errors with the rest of us. It’s so much easier to remember what the other person did wrong than what your own mistakes were, and it’ll only foster resentment. Many adults just simply don’t know how to do this and I do believe it’s a learnable skill. Things don’t go away if you ignore them.