It is only as if he has never shown any disloyalty when he is single. I once asked him: "Is that an actor or really, you don't get offended after the breakup, no matter what relationship you have, I find it beautiful and happy". He just laughed and said, A handshake is not the end. Saying goodbye is the beginning. But then, when I got to know each other, I realized that my friend was the type of person that psychology calls "the person with avoidant connections".
Those who always try to remind themselves that they are always calm and happy when being alone rather than valuing someone else - because inside them, although they are hungry for love and care, they are afraid of losing freedom, or even more, afraid of repeating old mistakes when they are young: Hopefully, they will receive attention from adults but be rejected.
They are people who have an avoidant connection, they always seem to use a few or a series of behaviors to suppress the attached system - a biological mechanism in the brain responsible for the desire to be close between us and others. Although they live deep inside, they want to be close and loved, but try to " avoid" or deliberately stay away from that need to avoid self-harm.
Accordingly, young people with this personality will have difficulty developing a healthy relationship with emotional boundaries, because it is difficult for them to trust or confide in the deepest confidences in others. My friend is the type of person who easily accepts a breakup with a lover despite being together for a long time. He also easily entered new love affairs, as a way to overcome the feeling of confusion and emptiness after a breakup and seemed to easily make more similar mistakes... Of course, I don't judge him morally. But if the cycle of love - farewell - love - farewell continues from day to day, then I don't understand what your ultimate goal of happiness is?
Therefore, every time I see him updating his "single" status on Facebook, that is the time I know he has... started.