Hello Alyssa 🙂
When you are connected to another rider, it means that you can talk to them with the chat (available on the laptop version and on the app), like Alyssa said it's pretty like friend or follower, but in a Horsealot way 😉
Feel free to contact me if you have any question or suggestion about Horsealot.
Have a nice day,
Georgina, community manager at Horsealot
Its just like another term for 'follower' or 'friend'