Have gone through a break up so currently back home. Brother is 2 years younger. I’m mid 20s. He is being absolutely awful to me bringing me down, talking to me like absolute rubbish, being me feel stupid. He regularly calls me a stupid bitch over anything and everything. If I try and speak to him or try and make a conversation and tell him things he just says ‘I didn’t ask’. Or ‘good for you’ he’s sarcastic, rude. I just don’t know how to cope with it. What would you do?