Hi, I have some issues with the sister in law of my partner. She goes out of her way to make me feel and look bad, this has gone on ever since I first met her. Gradually getting worse and worse, I lied about my age when I first met my partner, I didn't see it as anything serious at the time. But when she found out she made a massive issue out of it. Sadly by conincidence they live on the same street as us. At the start we used to invite them round, I mentioned in convo the year I moved into my house, I didn't realise but I had got the year wrong by one year. She went home looked it up on Internet when we moved in then gossiped behind my back that I did it on purpose for some reason. we went to South America on holiday, we had saved all year for this extended back picking trip and even done car boots. I wasn't aware to the extent she bad mouthed me to my partners family behind my back at this stage. But I could sense an obvious tension with her. Even though the relationship was awkward we still were okay with them by this point. On the day we were leaving to go to South America, our street has on street parking and close to city centre so rapidly gets full of cars. My boyfriend nipped into town for a last minute item and took my car and on return couldn't park outside our house so had to park near there's. Instead of asking us if she could move the car later in the day to park there's. She texted me accusing me of doing it on purpose swearing at me. Its not private parking it's for general use of anyone. But it was a really aggressive conversation and I told her it was my partner her brother in law. who left it there not me. I don't know what to do since then I have tried ignoring her, not going to family functions, stood up to her told her how I feel, acted the same way she is to me, tried a lot of different approaches but nothing seems to work. From the start she has gone out of her way to make me feel really unwelcome and not part of the family, trying to make me look stupid and rude and a bad person. There is another family function today, I'm staying at my mums for a couple of days but could go back for it. But my partner says he will go alone this time if I don't want to go. I just don't know what to do. I feel like I would rather stay at my mums someone who loves me. But I don't want this to cause further issues between me and my partner in some way. The way she makes me feel like it's my fault, it's really upsetting. I've tried to talk to my partner, he isn't close to his brother and never has been really, and doesn't like them. I was trying to get them closer together but not it's worse then ever.
Mumsnet has not checked the qualifications of anyone posting here. If you need help urgently or expert advice, please see our domestic violence webguide and/or relationships webguide. Many Mumsnetters experiencing domestic abuse have found this thread helpful: Listen up, everybody
Relationships
My SIL is an absolute bitch. She caused a massive argument between DP and BIL who have not spoken consequently for over 11 years. She's passive aggressive in her actions by twisting the knife with MIL regarding my family. Like yours, they live over the road but we have gone NC with her and a lot of DP family as the lies she has told caused so much upset for DP. She's not brave enough to be around me because she knows I will tell her exactly what I think of her. She's taken my DC cousins away from them and turned DN away from their uncle. 
oh well done!
Keep it short (and sharp!). Don't get into any long-winded retorts. Just pack it in (if that's your thing lol!) or 'That's enough!' etc. Maybe not 'Behave yourself!' but you get the gist 
Just remember she's a mealy-mouthed little thing to 'need' to do something like this ie stage a campaign against you. You're not the first, remember (cousin was first). This is what she does. Stop her in her tracks.
To comment on this thread you need to create a Mumsnet account.