Questions, questions, answers?, how do you "fall out of love" so quickly? Options

[IamRad]

So for 6 amazing months with my boyfriend, nothing went wrong..we never got into any arguments, nothing like that. He was like my best friend, we laughed, talked, joked around etc.
Then May rolled around, and usually we would hang out alone once a week, so as usual i asked him to come over...as the weeks went by he kept making excuses as to why he couldnt come.
Well, the day before our 6 month anniversary, i invite him over, he says yes...and i get all excited and such, because i hadnt been alone with him for a month.
Turns out, he was coming over to break up with me Now of course im in total shock, and i can hardly speak, but i manage to ask him "why?"
He said he just hasnt felt right lately, and of course he gives me the "its not you its me" line...

My question?
How do you go from being so "inlove" as he told me many times....to just gradually losing that feeling?

Now the thing is, im stuck with all these questions i want to ask him, but i have no way of contacting him since its summer. The fact that i actually fell inlove with him, and he's just been taken away from me kills...

&& another thing, if i ever do get to speak to him online or something, how do i even begin to have a conversation with him about our breakup? we will eventually have to have it, seeing as he still wants to be "really good friends"

[JustAnotherTeena...]

I don't want to sound like an a-hole. But true, pure love, is something that sticks with you forever. You can't fall out of true pure love. You could fall out of infatuation and or lust. But I don't think it's possible to fall out of a true pure love.

That's very true. But sometimes you can seriously believe what you feel is love. Which is why it's so confusing & heartwrenching when your feelings change. Though at the same time, love can really be there...but in some situations, love just isn't enough to hold people together. You have to consider lifestyles, personalities, etc. I believe that you can honestly love someone deep down inside of you...but if[in some cases, not all] it isn't a healthy relationship, then other feeling may change even though the actual love is still there. And you just can't be with that person anymore even though it breaks your heart.

idk if that made any sense at all but...yeah idk.