Is it normal to hate your partners former wife so much?

My ex husband and I got divorced almost 3 years ago. He was a great husband but I didn't love him anymore, he begged me to try and make it work and I knew the only way for it to end was to move out. I left, he kept the house and I didn't fight for a single thing.

I was the first to get in a new relationship and am now completely in love. He found a woman almost a year later and she hates me wholeheartedly. I don't care but now it's affecting a situation with my oldest child.

I don't know her, I've never had a single interaction with her, I don't mess with their relationship because I'm happy and at peace. She talks so much negativity about me to other people, my cousin who lives a state away reached out to me with screenshots and audios as evidence that this woman has been stalking my socials and looking into who comments or likes my public posts (she noticed my cousin liking my post and saw they had a person in common, she reached out to that person to ask who my cousin was and how was she related to me).

My youngest son told me he overheard "they might be moving" because she can't stand being in the house I once lived in, with all my furniture and all my stuff.

My son once brought fruit that I gave him in a ziploc bag, apparently she almost moved out because she swore up and down I sent it to my ex husband and I was "trying something".

My ex husband asked my son to clarify to her, when my son refused to get involved my ex told him to simply record an audio saying the fruit wasn't for him, my son just said "fruit was for me" (🙄🙄)

I've always ignored all that I'm told goes on.

Well our house won't be ready till later this year and my oldest son bought an rv to live in, thing is it'll be parked at his dad's for now.

I was looking forward to helping him paint it and setting tile and stuff. Yesterday my son asked his dad if I could come help him and if I would be allowed to visit him, but of course she feels incredible emotional about me and it was a problem.

I'm sad because I want to be involved in this big step for my son but this woman acts as if our timelines overlapped- they didn't.

I want to make it clear: I'm in a serious relationship, they met WAY after I was done, and I have never, not once given anyone a reason to believe I want to get back with my ex.

Also it's an acre land, facing away. She would not see me but the mere idea of me stepping a foot there is inconceivable.