I'm going to tell to one of my closest friends that she is in an abusive relationship.
Do you actually think she's in an abusive relationship?
Yes, I do. I think she needs to do something about it.
You definitely should tell your friend that she's being abused and it's not ok to continue like this. I hope she'll listen to you.
Even if she thinks I'm crazy, some day she will thank me for being nice and good to her.
You're a good friend to be looking out for her like this. I'm sure eventually she will realize that you are just looking out for her best interests!