This should answer your question https://www.newstatesman.com/culture/2021/06/the-darker-side-of-bob-dylan
There are many kinds (can't name them all off the top of my head)
1. Telling someone you'll keep it a secret and then tell anyway...
2. Always being there for someone and then not
3. When you cheat on your husband/wife or someone you're in a relationship with
4. Using someone just to get some
Those are all I can think of (at the moment). But you can just pick whichever one you want.
Not really...the bigger the conflict, the more losers there are.