Spot on. And yes, this is both a strength and a weakness in Warren, that she looks to see the best in people. That she believed that Sanders, who has always gone to her for help with his math homework, long before she became a Senator, was actually HER friend. She was his, absolutely.
But he sent his flying monkeys after Kamala, and of course he sent them after her. He hired some nasty people, and tries to maintain plausible deniability, but he is nobody’s friend, and has no loyalty to anyone.
AOC may be discovering this for herself soon, if she hasn’t discovered it already.