Some things are meant to be left in the past, and you just cant bring it to the present. Past will eventually be the past no matter how much you poke on it. Let past be the past. Shall not trigger it, lest it becomes a hindrance to the future.
When people have a new toy, it is interesting and unique to them. Being new, they spend quality time to play with it and spend money to maintain it. Without having any thought about the old toy and ditch it aside. How often do they realise the new toy will become an old toy eventually?
All these time, there bound to be another newer toy replacing the new one and the supposedly new toy will be chucked aside too. And the cycle continues.
Without having the grasp of the new toy, people want it so badly that they cry for it, try hard to get it, do whatever means to get it. But when they finally got the new toy, play for it for awhile, getting bored with it and search for another new one again. It's another never-ending story.
Sometimes we will neglect the people we love for personal problem or external factors. As time goes by and when they come back for you, it means they really cherish this relationship. Be it friendship or bg-relationship. If not, just forget about them, they are not worth it.