Do you know, a relationship between two human beings is like a chemical reaction. Humans are the chemical compounds, interact each other in this universe, seeking for stability. The interaction is achieved through chemical reaction.
In order for a reaction to be completed successfully, there's an energy that two, together must exceed. It's called the activation energy. One compound may attract another compound. But in some cases, a compound may have a repulsive force towards another. For the former, the activation energy is small, if not achievable. For the later, it takes more effort, more reciprocal actions, more energy and sometimes an external aid, a catalyst. Sometimes, it's so enormous that at the end of the day the two compounds give up and tend to search for another less repellent compound, thus more obtainable reaction.
How i wish we were the former. Unfortunately we are the later.
