Depending on friends for happiness?

have you ever felt that you happiness depends on a certain person? well i did. one of my very close friends indeed, which is no longer close. She left and changed into another person with another personality, and as she left i felt that my happiness left with her. it is sad to think that a certain person can affect you in a way that can change everything in you starting from your feelings,especially your happiness. in some kind of way i can assure you that when she left i felt sad, depressed and some what like i didnt have any friends. however, after thinking about it i managed to get myself out of that small depressing circle and make another circle where i didnt need to depend on anyone for my own small potion of happiness. i managed to successfully be happy again and realized that even though i really miss her being around, i didnt really need her. it may seem stupid but she did mean alot to me even if i didnt to her. i guess the message i want to get across is that you really dont need anyone to be happy, you just need to free your mind of any troubling thing you have going on and live your life. happiness should not depend on a certain person, it should depend on you.