Alright, before the CheesePie shippers jump down my throat, hear me out!
I thought these two could be compatible due to them both having experiences in Manehattan, so this is sort of going headcanon.
I believe that while AJ was in Manehattan she attended school there like any other filly, and met Cheese but had not recognized him until she and Cheese spoke later when they were older. They instantly clicked and began talking like old friends, about their experiences in Manehattan, and how they both left.
The two didn’t really date, but they did spend a lot of time together. Often, Trenderhoof (whom in my headcanon I believe is Cheese’s brother, due to their height and build.) would visit the two. Eventually they began courting and got married, and still adore each other today.
Now, they had a little filly. And her name? Fondue! Trenderhoof offered the name.
Fondue’s much like her father, having great humor and energy around the farm. But she’s also very serious at times when dealing with chores and yardwork, and is always daydreaming about lunch-time. She’s very sweet and innocent, and honest to a T. It’s hard to get her to NOT be a good-two-shoes.
Her talent is making alternate apple foods rather than just baked goods, especially fondue as which she was named.