friendship is a 2 way street, not one party lording it over another. Friendships are also like marriage, requiring hard work, compromise and respect from both sides.
I find it gruelling trying to maintain a one sided 'friendship' so I have let some go in the past and been better for it.
I was a poor friend at school through no fault of my own but I am, finally, getting that sorted and understanding why, which is why I look for that two way relationship now from a friend.
Dana, it sounds as though the friend you have let go was not contributing much to the friendship anyway.
Dorothy, it sounds as though you and your friend have this relationship based on mutual respect and I am sure you can overcome this issue at this time of your lives.