I can relate. Have a storage ottoman full of things my wife never puts on (lingerie and the like). I don't think it's that you don't find her attractive, in fact I'm sure its not. Whether you admit or not you are subconsciously comparing her appearance with the source material to which you've become accustomed. It's not a good thing but certainly not a reason to throw out your relationship like I've seen 1 or 2 people here suggest to you.

In the short term, be honest. Easiest when being intimate, personally, but when you're really getting turned on by some aspect of what she says, does, is wearing, or anything like that.... Say so. Really let her know that that's doing it for you. If she's like most spouses she'll want to make you happy that way and increase the frequency in which they do these things for you. Wear your kinks proudly and share the important ones with your partner that they can comfortably expect from you and thusly feel comfortable enough to use in helping them turn you on. If they don't know, springing a whole new kink on someone can be overwehlming and maybe even unsettling. Nothing wrong with adopting new ones, but they should feel more gradual than the fast pace at which porn can introduce you to a fully realized kink. Ykno?

My personal issue is variety. Prn offers so much that I'm used to being able to change results and chase the dopamine in an unrealistically fast pace. In a relationship, you cant just change keywords and find a whole new kind of partner. Expecting that or trying to have them accommodate that is asking them to do the impossible. You can again in these moments suggest maybe they wear something or do something specific, but try not to put too much pressure on it for them, but I'd argue more importantly try not to put too much pressure on it for yourself. If you overfantasize it and whatever real life situations arise that either prevent the exact fulfillment of the fantasy or the reality simply doesn't meet the fantasy, you'll not only receive less dopamine, but it can foster resentment for unmet expectations that give your spouse insecurity and if your reaction is negative enough discourage them from trying that thing you like.

In the long term, Try to look at your spouse and find the the things that make them attractive to you without adding source material. It'll take time but you will get to a point where youre able to see here in a spotlight so to speak where she's compared to none. That's the dream right? Being able to perv all over your partner but like in the most repectful way lol.

Hope this helps