There were so many things that made you think like that:
- he was texting you just because, he could find some time with you at any part of the day and night, even for a few minutes; you both could enjoyed being out in any kind of weather, no matter is rain or freezing cold;
- he didn't feel tired after his work;
- he seems to be motivated and ambitious in all he did;
- he could kiss you just because...
- many many other beautiful things...
Then after some months the things changed suddenly, everything from above mentioned disappeared and when you puzzled try to find out what happened you get really shocked by the answer you get (He would just tell you that: :"Sorry, I do not have any feelings for you anymore because I just like variety in women and I cannot stay with the same woman for a long time, I cannot be faithful..." Here also you will hear the traditional: "It is not you, it's me!", so you realize that you just wasted your time, but this is not the worst thing that has happened. The worst thing is that you still have feelings for that person and is not that simple to ignore them.
But let us look at the problem from another point of you, you experienced something beautiful, something that not many people would have the chance to experience nowadays. So, you have nothing to do as to overcome the situation, no matter how difficult it may seems to be. You just have to be strong and just move on. Because there is no reason to stay with a person who would just hurt you any time telling you that he has no feelings for you, even you are the best friends. It is really difficult to be near a person who you love desperately but he looks at you as you were a stranger. There is nothing to do, if there is not that chemistry between you both.
You just should be strong, find some new motivation, concentrate on your goals in your life, spend more time on your hobbies, work on your personality, and simply:
You are the only person who really deserve to be loved!
If you have some stories to share, it would be great to discuss them here. I would really love to hear your opinion on this kind of relationship.