Hi Kia. Thanks for your detailed question.
The Related Events displayed at the bottom of the Single Event view should NOT be suggesting itself as a related event.
However, if you have an event by the same name but on a different date (like in a series of recurring events), it may be referring to another instance in that series of related events.
To be clear, the code for Related Events excludes recommending itself as an event related to itself.
If you are experiencing that, another plugin may be conflicting with the query logic or something like that (e.g. I see you have Event Rocket activated), in which case, this is our general troubleshooting advice:
Please follow our Testing for Conflicts Guide and see if that helps narrow down the cause of this.
Let us know what you find out.
Thanks.