People change and words don't mean anything.
It's true. They can say whatever they want, they can write they love you as many times as they want but if you don't see it in tangible forms, than they're just empty words.
I am starting to notice those who will only do things for others when they have something personal to gain from it. Otherwise, they would never go out of their way 'just because' for a friend.
So the ones that take the time to keep in touch, to call, to meet up, and keep you in their lives, rather than just push empty words at you, keep them around. Those are the real ones.
So the ones that matter. Make sure they know. Life's too short.