Have an unusual relationship with closely aged sister. We are living together and have historically had a patchy relationship. Have noticed recently that she seems to be happy when Im low/sad and retreats when I am happy/want to share my joy with her.
She is very difficult to live with and has been so in lockdown e.g. refusing to engage in small talk or minutiae about our days. For example, will see me and make a caustic comment as her greeting to me for the day - why bother? Almost deliberately obstructive? But will be kind to others and to our other housemates.
Worth saying I am planning to move out but sad it has to come to this. I would be happy to just have a normal relationship without the highs/lows but there always seems to be some manufactured drama. She seems to some deep rooted anger issues directed at me too, and will often cry/scream/be furious if we engage in disagreement - it inevitably escalates to conflict and Im not sure why.
I even suggested specialist therapy but she cancelled it after originally agreeing to it.
She has called me some awful names in the past: I was very low at one point in lockdown after a relationship breakdown of sorts and she called me desperate, lonely, pathetic and useless. I had also had some bad news regarding a work transfer and she said she was sorry to hear about it, but equally that she hoped that I would be bankrupted by it?!
For context, we are on different career paths and I earn about 50% more than her. Would not use this against her, it is what it is. I am dating currently and she is not. She becomes very defensive when we discuss any of this.