Re: Why does this happen?
I noticed that you have VirtualBox on your machine. VirtualBox (as well as other VM suites) create additional network adapters to host the internet service for the virtual machines. With that said, however, I haven't seen a scenario where the VM creates additional connections that have the same name as your actual physical connection. You can try deleting the connections that are null and then see if the connections return. If you're not willing to go down that route, you can simply hide the connections by right clicking on the taskbar and... well I'd need to get the exact steps from a VM myself, but there are ways to simply hide those bad connections. If you need help doing this or need some screenshots, post back.
Edit: My apologies, I took a closer look at the screenshot and those connections are legit. You have a bluetooth connection, your VPN, and then the physical LAN connection. Just hide them and forget about em.
Humans are the only creatures that won't live up to the their potential. Give everything your all. When you die, die on E.
So I ask you, what do you intend to do now?