What happened?

I never thought i would feel more than what i thought i had felt for my ex, for someone i wasnt even in love with...i know, it sounds so strange...we never officially dated, nor were we officially, boyfriend and girlfriend, but i am pretty sure everyone that saw us together, probably thought that...i thought that one day, we would oficially, begin to have have something serious, but somehow, that all changed...he stopped calling me, and never seemed interested in seeing me again...all i could think of was, why?...Why is he being like this?...i soon came to realize that all men are the same, and dont know exactly how to express their feelings, and instead of just telling you what they feel, or what they want to say, they do the exact opposite, and leave you wondering, and thinking, and wasting your time, on what the hell is going on...till this day, i dont even have a clear answer, but the only thing i can think of, is that, he just lost interest in me...its just that everything seemed to be going so great...it seemed that at the moment, he wanted something serious with me, and all of the sudden, that all changed...he was, well, still is, maybe, the sweetest guy i ever met...i didnt think guys like him could ever exist...but hopefully he is not the only one...or maybe, he thought i was too much for him, or maybe, theres too many, or this or that, to think about...
and all i know is that, its too hard to talk to him as if theres nothing there, because, the truth is, there is, as much as i wish it wasnt, it is...i just wish everything would be like it used to, or at least, having it not have happened at all...