Why do we always become disappointed when people don't meet our expectation's?
In my opinion, I feel that we want a friend or a potential mate to fulfil our happy ideals we've programmed in our minds that will make us happy. This is a hard habit to change and if you don't change it, it will become part of your personality. Of course, we like what we like and we want and need what we want and need but we don't know if that person will fulfill our exact ideals and that is a lot of pressure to put on yourself isn't it?
So, why don't you enter someone else's space with a neutral feeling, for example; you meet a potential mate and he or she is so far what you like, instead of getting upset when they don't do what you like, why not just enjoy who they are and appreciate all their qualities that you can discover at that moment? At the end of the day, you don't know what that person will symbolize in your life so, just appreciate who they are and be happy with that, you will eventually discover in a softer way if you can see yourself with that person. So, don't overwhelm yourself with expectation's and emotional rollercoaster's that drain your energy, just go with the flow with a positive and harmonious frequency. If it's right for you and your life then it will be shown to you, just flow with calmness and happiness.