After patting Trixie Anon learns that she likes the attention and he gives her scritches. Anon fails to realize that Trixie thinks scritches are special, so when he gives Twilight scritches she gets very upset.
Shining Armor has become an alicorn for some reason, and with no explanation available ponies assume ascendancy is sexually transmitted. Much to Twilight's irritation.
Trixie's line of work is dangerous. But she's a careful showpony, and that's why she's only died a few dozen times in her career. She thinks this is normal.
Being Great and Powerful is nice and all, but it takes quite a bit of hard work to get there. Luckily, Trixie knows exactly how to 'convince' people to like her and her show.
"I've thrown some pretty super parties in my time, but this one must be off the charts, cause two of my besties are finally trying to hook up! Wait, four of them are! Ohmygosh, they're all trying to hook up! ...Maybe this isn't the best party ever."
Once she discovers her services are no longer require, a performer makes a trip to rediscover herself and her purpose in life. Third entry of my Literary Trilogy.