

You can love someone romantically without wanting to share your life with them, or progress the relationship beyond casual.
You can love someone sexually but not romantically, or vice versa. And sure, you can have romantic feelings for someone and not trust your feelings because of previous experience.
Anything you can imagine, someone can feel.
I would just take her at her word. And tell her what you want, without asking her for anything. If she is not open to the kind of relationship you want, does it matter what she is feeling? I think not.
I’m older, straight as a ruler with queer kids, queer friends, grew up around 'theater people ', drag queens, lots of variety. Lesbians I did find off-putting when very young (like teenage) but it was fear I think? It only came up when a woman would flirt with me (apparently I don’t read straight to everyone, my kids still don’t believe me. )
Later I did just go ahead and try, and nope, I am straight. It didn’t freak me out just didn’t feel like sex. Honestly wish it were otherwise as I get older, women hold up better. But it’s men for me.
Finding women hot does not mean you are gay. Wanting and enjoying sex with them means you are gay. No problem either way, you don’t really need to define it just don’t be a jerk to people.
With porn in particular, realize so much is made by men and focuses on the women, we do too, it’s unavoidable but I think we watch and more imagine ourselves in her place, not want to DO her.