My best friend has not returned my messages twice in a row, and she has forgotten my birthday.

Maybe her mobile phone is in arrears, or she is busy with other things and forgot to contact you. I have several good friends, especially relatives. When I have no money, I will lend it to me readily. If I have any difficulties, I will help me, play together and have fun together. It's been many years, and it's still good. We don't contact often. I don't remember their birthdays and birthday presents. I feel that true good friends will not care about them, if it is for their own face.

Friendship can last a lifetime. Good friends are those who know your shortcomings and stay with you.

You can call her and see her attitude. If there is no pleasant tone, you should consider your relationship.