Sorry for the long post. Please be kind and no nasty remarks as I'm struggling with feeling so disliked for no reason as it is.
Looking for some insight from anyone whos been in a similar position or the perspective of the ex wife as to why my DP's exW might dislike me like she does.
Background so I dont drip feed: DP split with his exW 6 years ago and divorced. He ended it but she agreed they didnt work. Amicable and co-parents well, pulls his weight fully in this area. He doesnt live in the same town anymore as her.
We met 5 years ago and been engaged for 1 year. I was not the OW and his exW had a new partner by the time I started dating my DP. We're not living together yet due to logistics of work and kids but plan to soon.
ExW has and continues to keep trying to keep those emotional ties with my DP and acts as if she still believes shes entitled to wife status despite the divorce and as if I'm the outsider. DP ignores it and wont engage outside of coparenting. Hes had to be quite firm about boundaries at times and reinforce that they're no longer together and she needs to stop (eg her continually posting family pictures on his facebook feed and tagging him in random stuff about her (theyre still friends on there due to the DC) or asking him to cut her lawn - despite being fully capable and having her own DP.)
If she knows we're out together just us, or with my DC and not his as its her time with their DC, he'll get long messages about irrelevant things she needs him to do with the kids. He ignores it but it puts a damper on our time together. Shes knows this and is likely her aim.
Hes fully transparent with me about any communication with her (no hiding phone or messages etc).
Shes always got to try and out-do me in anything I do or that my DP and I do together. Even at one point changing her hair to match mine (yup single white female vibes springs to mind). I dont have a lot of contact with her as Im not involved in pick ups of DSC but the times I have communicated for DC stuff or the odd occasion Ive met her during pick ups she has seemed pleasant but in a 'putting on an act way' and as if she'd rather not have to speak to me.
Recently bumped into a friend of exW's and my DP's, more exW's friend as hes not stayed in contact after the divorce. He introduced me. She was very chatty with my DP and my DSC but very rude to me. I dont know her so clearly this animosity has been fuelled by the exW.
I've always been pleasant to the exW and not intruded into any coparenting unless asked to. Im struggling to understand why she wont let go of my DP and why she dislikes me so much to the point her friends who Ive never met before are so rude to me. I didnt steal my DP from her and always tried to care for DSC as I would expect mine to be cared for by a step parent. Theres absolutely no other back story on my part in all of this.
Any idea why she would dislike me so much when she hardly even knows me and Ive always tried to be kind and friendly? Struggling to get my head round it and it's quite upsetting.