The search function is your friend in regard for finding a best practice in regard to 'fruiting' a beer. I'm not a fruit-beer kind of guy but know the vodka treatment is marginal. I'd spray the whole fruit with star-san if I were going to worry with it then peel & disregard further treatment. I made Tepecha recently and that is how I treated it.
I clicked simply to share that I was really impressed by the beers at The Slice & Pint in ATL last summer including a pineapple IPA. So, it can be done, well!
One thing, if you're not a big IPA fan, why make the beer? I'd suggest if bitterness is the issue you can basically dump all your hops in at the end of the boil, let them steep for about 10 minutes then chill to get a moderate bitterness with big hop kick. If you don't like hop flavor, you probably will never like an IPA.