As mentioned before, without more context, it's hard to determine who this George Ty is. He could be an entrepreneur, an artist, or someone in the academic world.
Amy Fleming and Ty are likely characters from a particular series or fandom. They could be characters who have a relationship, perhaps friends or more than friends. Without more context, it's hard to say exactly who they are in the grand scheme of things, but they must be important to the story if Amy is yelling for Ty.
I'm not sure specifically who Ty is without more context from the fanfic, but he's clearly someone who has a connection with Amy and is willing to take care of her when she's sick.
There's no widespread information available about Ty and Dustin Marco without further context. They might be individuals in a private circle, like friends or family members in a particular story or situation.
The players of the Titanfall series had different evaluations of the first and second generation. Some players thought that the first generation was more realistic and hardcore, with more details and freedom, while the second generation had an excellent single player campaign. On the other hand, there were also players who said that the first generation was not worth buying because there was no single player story. Some people thought that the first generation's plot was very interesting, but you needed someone to play with you, while the second generation had a single player plot that was cut from the first generation. There were also people who said that the first generation's combat speed and map design were excellent, making it very fun to play. However, some people were disappointed with the story mode of the second generation, thinking that the single player campaign was outrageous. In summary, there were differences in players 'evaluations of the two generations of Titanfall games, and there was no clear answer.
Caleb could be a great character to include. He could offer his practical help, like building things for the baby or helping out with the farm work so that Amy and Ty can focus on the pregnancy. Lou could also be important as she might be full of advice, being an older sister. And of course, Jack, who could give his wisdom and share his own experiences of raising a family.
Definitely the horses! In Heartland, the horses are like family. They could play a role in the fanfiction, like being part of the wedding procession or having some special connection to the couple's relationship. Also, Lou, Amy's sister, could be important as she might be involved in the wedding preparations or giving advice to Amy.
I'm not sure specifically who 'Ty Walker' is in the context of 'Scary Stories' without more information. It could be a character created by an individual for their own collection of scary stories, or perhaps it's a relatively unknown name within a particular genre or community related to scary tales.
There could be Lou, Ty's friend or colleague. She could play an important role in helping the girl adjust to the new environment, perhaps by taking her shopping for new clothes or showing her around the place. Another character could be Grandpa Jack, who gives the girl some valuable life lessons based on his own experiences.
It's also possible that Ty is a mentor - like figure to Amy. He could be someone she looks up to and has learned a lot from. When she's hurt, she yells for him because she knows he'll know what to do, whether it's to comfort her, treat her injury, or get further help.