Hi all!
I have posted before about the continuous arguments between myself and my SIL regarding our DDs. I have 3 DDs- 19 & 16 (from a previous relationship) and 12 (with my current DH). It's with my youngest that the arguments center around as SIL has a DD the same age.
We could not be more different in terms of parenting styles. While I admit I am probably much more relaxed than a lot of parents, SIL is the complete opposite and extremely strict with DN. Common rows include letting my DD wear make up, the clothes she wears, having her ears pierced, letting her go to town on her own, and also eating with her knife and work in the opposite way route to what is 'traditional' (caused quite a stir on here last time) etc etc.
DN has noticed my DD is allowed to do things she is not and so does use this to moan at SIL. SIL often accuses me of undermining her parenting and often criticizes me and DD in front of us which has upset my DD. Whenever we see them there's atmosphere and relations between us are just getting worse. SIL always seem to find fault with either something me or my DD are doing.
A couple of weeks ago was another example. DD and DN attend the same secondary school and so have a similar circle of friends. They were both invited to a birthday party which involved the cinema, shopping and then a sleepover at the girls house on a Saturday. They were both invited to this about 3 weeks before the event and both confirmed they were going.
However, on the Tuesday of that week DMIL rang to say she was organizing a family get together on the Saturday. DD1 is at Uni, DD2 was with her dad and I explained that DD and DN had been invited to a party and so probably wouldn't be there. DMIL was fine with this as it was a last minute arrangement.
Fast forward to the Saturday and DH and I arrived at the party after dropping DD at the cinema to find DN there with SIL. Had barely got through the door before DN asked was where DD was. I explained she had gone to the party which caused DN to get upset. It turned out DN had not been allowed to go to the party as SIL had told her family is more important. Whilst I obviously agree with family being important, we do see them regularly and thought it would be rude for DD to suddenly say she wasn't going to the party. Plus she was really looking forward to it. SIL cuts in and says to DN- 'auntie Han clearly doesn't think family is important as we do' 
This then turned into yet another row and DH and I ended up leaving. I am literally at the end of my tether with her constant snide remarks and criticism of me. DH does agree with me on most things but tries to keep the peace. I have told him I am no longer putting up with it. I will be civil to her on family occasions but I am done with having her in my house being rude to me and DD all the time. I feel sorry for the girls in all this but she is obviously refusing to change.
AIBU???