Fiancée (33F) is obsessed with my (34M) ex-wife (32F).

TL;DR: My ex-wife had an affair, I divorced her, got with a new woman and was about to get married, but she's now obsessed with my ex wife all of a sudden. I'm not sure if she's just trying to get the "full experience", but this is extremely annoying and feels extremely disrespectful to me.<br><br>So this is a long story, but I think it's necessary to provide you guys the full picture. (Warning: long post incoming)<br><br>My ex-wife "Sammy" and I got married in 2018 and divorced in 2020. We were together for 6 years before that. In total, we've known each other for about 17 years. In 2020, we divorced due to her infidelity. Before that, she was a great wife (or so I thought) and I was happy about spending the rest of my life with her. But I'm not dumb. When I found out about her cheating, I left and filed for divorce. We had a small wedding, small honeymoon, small house, small everything. I'm comforted by the fact that she didn't get to enjoy the big wedding and big house that she always wanted from me with the man she cheated on me with.<br><br>The reason I bring this up is because I met "Helen" (let's just call her that) in 2021. We met while I was working abroad. We had a bit of an instant connection and I told her right away that I wasn't looking to be in a relationship. But Helen was patient and we started talking and it led to us dating. It's been about a year and a half and we've decided to get married. We decided to have a small wedding in the countryside, in the summer, in a vineyard, with a few people from my side and none from her side (she's an immigrant in the country I was working in and she doesn't have any friends or family there).<br><br>I thought it was all going great. Helen is an amazing woman. But just a few months ago, she found out that I was married before. I don't know how she didn't know this. I don't think it's that big of a deal. It's not like I'm hiding it. But she found out and since then, she's been obsessed with this whole thing. She asks me about my ex-wife all the time. I think she was a little hurt that I didn't tell her earlier, but I don't see it being that big of a deal. But she kept asking more and more questions and I told her what happened.<br><br>Ever since then, it's been weird. She keeps asking me more questions about what happened. Honestly, I don't mind that much, but she keeps asking questions that are so specific and weird. Things like "what did they do?" or "what did she look like when you confronted her?" or "did you call her a whore?". It's just very weird and I'm starting to feel uncomfortable about it. I've told her time and time again that I don't want to talk about it. But she keeps pushing and it's starting to come off as weird. I told her I don't want to know about her past either, but she seems to be just fixated on it. She's not mad at me for it, but I can tell she's just obsessed with this.<br><br>But the last straw came yesterday. We were looking for a place to live after we get married and Helen said she wanted to live in the house where Sammy and I used to live. I'm not sure if she's being serious or not, but I think she's just taunting me with this. The house is a relic from another time. Honestly, I don't even want to see it again. It's just filled with bad memories from the end of my last relationship. I told her I wasn't comfortable with that and she got quiet. Honestly, I don't think she's serious, but it's just another thing in a long list of things that she's done recently that just bugged me.<br><br>I'm just not sure where to go from here. I don't think Helen is in love with me. I think she's just obsessed with the *idea* of me. I don't know what to do. This just feels like a massive red flag and I'm not sure how to bring it up without things getting too messy. I don't want to call off the wedding and I don't want to accuse her of anything, but this is seriously starting to bug me.<br><br>&#x200B;<br><br>What the actual hell is going on here? Has anyone ever heard of a story like this?<br><br>Edit: I think people are focusing too much on the house thing. Like I said, I don't think she's serious about it, it's just another weird thing she said.<br><br>Edit2: Also, I've never mentioned my ex to her at all before she found out. It's in the past and it doesn't bother me that much anymore, so I don't want to talk about it. Honestly, it's been almost 3 years since we divorced. It's an old topic that I don't want to bring up.