Conflicted Mindset

So I've been in a DDLG relationship with my partner for almost six months now. It's weird because she loves the dynamic, and it just feels so natural when we're together. She acts like this little girl who needs guidance from her Daddy. But here’s the thing, I’ve always considered myself to be someone very rational, you know? All about logic and data-driven decisions. And yet... I find myself getting really excited when she calls me 'Daddy' and asks for my protection and support. I mean, we have these intense moments where it feels like everything else fades away, except the internet stuff always reminds me of how old everyone is supposed to be. It’s a strange feeling being in my mid-thirties and acting like I'm in charge over someone else's adult desires. But then there are other times when I get this rush, you know? A thrill from knowing she trusts me completely with all these things, like really trusting me as her Daddy. And it’s not just the fun stuff; it’s also handling her when she’s upset or confused. It's like playing a video game but for real life, and winning feels great. I’m starting to wonder if this is normal? If I'm crossing some line by getting so invested in something that’s essentially an age-play fantasy even though we’re both adults. And it’s not just the sex, I mean, let's be clear, there are intense physical components, but more about how deeply emotional and psychologically charged the whole thing feels to me. So... I’m asking for advice here. Am I being a bit too much? Is this something that other people experience as well? Does it get easier over time, or do you think I'm just going to feel weird about all of this forever?