NC for this.Sorry, I'm not sure if there is an acronym for partners sister so I'll call her SIL.
'Im being bullied'sounds a bit pathetic in this situation..but i can't think of a better word for it. SILs relationship broke down the month i met DP. SIL seemed, not surprisingly, depressed..she said her DP was with a younger woman (her DP was 10 years her junior) and they have 2 DC. From the outset SIL was oddly strange with me..blanking me when i tried to make polite coversation, glaring at me and making odd snarky comments. always related to my appearance...eg in middle of conversation about the weather she'd suddenly ask if i ever wore makeup then when i replied not often she'd pull a face and say it doesnt suit everybody anyway, again mid conversation about a totally different subject bring up a previous job id once had (considered an unusual/desirable job i suppose) and sniff that you didnt need to be attractive to do it etc etc.Comments always in same vein. My hairstyle, my weight (both boringly normal) Its not like she was transferring her hate for her DPs younher OW to me because Im same age as SIL. This went on for a couple of years and over time comments got worse and more personal..each time tho, related to appearance..i didnt tell DP. I wondered if she might think id 'stolen' her brother so encouraged him to have more contact with her, send texts or phone. He didn't bother. I kept trying to be polite in the face of the odd comments...taking a polite interest when she spoke about her job or DC...speaking to her in a friendly way etc.Over time she started to make comments within earshot of others, including in my own home while stuffing down the lunch id made her. Then came the meddling..DP got drunk and was verbally abusive to his friend..this caused us to argue and me to considering ending the relationship .SIL phoned me (she never has before) to have a go at me...at which point id had enough..told DP about the 'bullying' id been subject to for several years and he said he'd noticed some of it..but done nothing, he hadnt wanted to upset her. AI (or rather Was I) unreasonable for feeling he let me down? Surely he could have had a quiet word when he first noticed or even a light hearted comment just to let her know he'd noticed. I just feel sad he saw me having to sit and be on the receiving end of nastiness and did nothing. Ended as these things often do apparently (according to google) I called her out on her behavior and she cried and painted me as a bully. Ended now and looking back it all just seems pathetic but i wonder in retrospect if i was being overly sensitive or to expecting too much for my partner to have intervened? Also AIBU to think her behavior was strange