Urgent, confusion regarding entry exit date . Please help. .

Applied for visitor visa on april 25, got visa on 10/5/2025 stating following:

Valid from 3rd may/2025 Valid until 3rd November/2025 Multiple entry, 180 days ...

Bought two way tickets

From 23/May/2025 and Return 10/November/2025

( 171 days)

My question, should I leave the UK before 3rd November regardless of 180 days limit or I can return on 10 nov ?