Black Triangle Sighting in Deer Park, Washington on 2020-08-10 20:30:00 – Large object past atmosphere with many flashing lights

My wife decided to take a walk with her friends and saw what appeared to be lights flashing and pulsing at each other. she retrieved me and the object had moved quite a distance since their first siting. i observed flashing lights and what appeared to be streaks of light towards other lights. some flashes in between. one light appeared within the triangle and the flashed up and away then disappeared. there was alot going on. then a very bright light appeared over the ridge and went beyond my vision behind my shop. when i went to look for it it had vanished. then it appeared again when over the ridge next to the trees and i caught a video of that but unsure if its the same one, after a minute of it hovering there it went behind the trees. then it returned again and i had a zoomed in video of that and it disappeared in the video but stationary.