Love your enemies, for they tell you your faults.
I don't think it's completely such a bad thing to cling to one single person, but you have any number of people all around you. People are always connected to one another. You see? Just reach out your hand, and there's someone right here..It's when people realize how lonely it is being on their own that they start to become kind.
"There are people in this world who prefer solitude. But there is no one who can withstand it" -Fairy Tail
there is no reason to change the past because only due to it we're those who we are.
"though our paths may have diverged, you must continue to live our your life will all your might you may never consider your own life to be something insignificant and you must never forget about your friends for as long as you live