Am I right to be angry with my mother over this?...?

U have a right to be angry with ur mom cuz it sounds like she doesn't care about what he did, just about what u were wearing to "tempt him" which im sure u weren't trying to do. If she really cared, she would've cursed his *** out and comforted u afterwards. Ppl deal with abuse many different ways. U should try counseling if it still bothers u! Good luck my dear!