a normal kids show teaching morals:always be kind and just, eat your vegetables, believe in the power of friendship.
Steven Universe teaching morals:unhealthy relationships can be mutually abusive, and often create co-dependence at the point where the abused misses their abuser. Abusive people often use emotional manipulation rather/besides physical violence to try and control their partner. PTSD can't be cured just by facing the thing that caused you a trauma. No means no and if you don't respect that you deserve to be punched into next week.
you are an incredibly brave human being and your courage will get you through anything and everything. you have the kindest soul and i am very sure that speaking out about your mental health will help thousands of young adults accept their own issues.