A single star size light moved faster then a plane but slower then a comet moving in all directions with single camera like flash

Just after 3am, I was on the balcony of my condo, gazing at the night sky, at first nothing kept me looking. I had turned my head to chat with my boyfriend, until at the corner of my eye a bright flash resembling one from a camera caught my attention, as I looked in that direction, I quickly had focused on a star size light (south east) moving faster then any man made aircraft but slower then a meteor, it travelled up and down covering large distance in the sky, heading (north east). At times becoming faint then becoming clear. I followed it too see it flash a second time then quickly it had travelled past the point where I was unable to see this portion of the sky due to the way my building is faced.