I had a friend who was constantly late to things. I cut him off completely after he was 4 hours late to a day we'd organised with other friends. Completely ruined the plans - I said that's it fuck off and we've never spoken since and honestly I couldn't be happier. I've had one good friend for almost 40 years and it's because we share the same interests and he's considerate. My wife on the otherhand is no longer friends with any of her high school group and she basically only has 1 friend who she's lucky if she sees once a month. And when she does see her all they do is sit around gossip about the other local women they hate. Lesson: Women don't like women very much.