If you delete my side of a peering connection, will the other side still have access to my VPC?
No. Either side of the peering connection can terminate the peering connection at any time. Terminating a peering connection means traffic ...

https://www.interviewquestionspdf.com/2017/01/if-you-delete-my-side-of-peering.html
No. Either side of the peering connection can terminate the peering connection at any time. Terminating a peering connection means traffic won’t flow between the two VPCs.