Have you ever had a friend that got mad if you were friends with someone you did not like. Your friend may take and I do not want to be friends with you if you are friends with them.
In my mind that is very childish. Little kids say things like that. I have Never allowed anyone to choose my friends for me, and never will. Yes sometimes I have gotten hurt trusting or liking the same person, but other times I have seen something good and trustworthy in people I have been told not to trust.
I have a friend who lied to me for years. I have recently found out the truth, and it is not good. But I still will not turn my back on him, even though NEARLY everything he has ever said about himself was a lie. The reasons I will not walk away are: First he never walked away from me even when his friends wanted him to. Second he was there with a light and lead me out of the deepest emotional hole I have ever been in. He showed me there are people that do care. I changed my whole outlook on life, because of one simple thing he did. If I had listened to others who told me he was no good and a liar ( which he was big time) I may never have gotten out of the hole I found myself in. All that would have been left would have been to close the grave, but my friend reached down into that dark hole and lifted me out with one small act that changed everything.
This is why if someone says do not be friends with that person you should tell them you will decide for yourself if the other person is worth being friends with or not, and they do not get to tell you who to have as friends, so they should GROW UP and stop acting like a 4 year old.