It probably doesn't hurt both sides. The miscommunications, long silences no longer congenial. They mean just one thing. You don't matter. You don't matter. And then you realise the years that you spent nurturing a friendship meant nothing to the other party, probably never did. It was a matter of convenience. It was time pass. People move on, priorities change. You wait because you feel a strange attachment. It might be what you did. Maybe what you did in the past was motivated by their happiness. But i feel free. I feel free when i realise someone is not worth it. At least you move on.
Its ok to be stupid. You are here to learn. As long as you have learnt a lesson. Scorpions and snakes are not just animals. They can be present in some humans. They don't change in nature. They will sting you. Just like this story
The Old Man and the Scorpion
One morning, after he had finished his meditation, the old man opened his eyes and saw a scorpion floating helplessly in the water. As the scorpion was washed closer to the tree, the old man quickly stretched himself out on one of the long roots that branched out into the river and reached out to rescue the drowning creature. As soon as he touched it, the scorpion stung him. Instinctively the man withdrew his hand. A minute later, after he had regained his balance, he stretched himself out again on the roots to save the scorpion. This time the scorpion stung him so badly with its poisonous tail that his hand became swollen and bloody and his face contorted with pain.
At that moment, a passerby saw the old man stretched out on the roots struggling with the scorpion and shouted: "Hey, stupid old man, what's wrong with you? Only a fool would risk his life for the sake of an ugly, evil creature. Don't you know you could kill yourself trying to save that ungrateful scorpion?"
The old man turned his head. Looking into the stranger's eyes he said calmly, "My friend, just because it is the scorpion's nature to sting, that does not change my nature to save."
Source: http://www.ic.sunysb.edu/Clubs/buddhism/story/oldmanscorpion.html
Hence, keep up your nature. Forgive and move on. Forgive yourself for trusting wrong people, for believing in them and you will be fine :)because you have a good heart :)