Hi TicTacZebra - bundaberg sent up a flare and here I am 
Aversion is quite an awful feeling, isn't it? For me, the emotional guilt that accompanied the feeling of wanting to strip my skin off and run away screaming from my child(ren) made it all the worse.
Have you had it long? It can start during pg, certain times of the month, after a new baby is born or for who knows why (my current bout is, I suspect, down to my PND flaring up again). It might help you to track if it's worse at certain times if it fluctuates in intensity.
BUT, it doesn't need to be the end of bfing if you'd like to carry on. There are techniques you can try to see if it makes the aversion feelings lessen.
Distraction - reading, playing on your phone, calling a friend, etc
Limitation - Explain to your DD you'll nurse for X time - count down from 10, the time it takes to read a children's book, sing a song, hourglass, wind up toy, etc - this can give you something to focus on as well as giving you a clear end to look forward too.
Immersion - conversely, really focusing on your DD bfing might help as then the sensation of her nursing has your full attention rather then being a peripheral (yet all encompassing) annoyance.
Relaxation - You may find your nursing aversion worse if you are stressed or if you have other calls on your time (I found nursing an older sibling really 'eurk' if the younger one needed me [or I felt the needed me]) so taking a moment before bfing to 'centre yourself' may help.
Sorry I don't have a definitive answer but I really hope you find a way forward, be it a way to gently wean or a way to carry on.
All the best