Alice, strictly speaking, it was
a UFO if you couldn't identify it!
But your clear description of what you saw is almost exactly the way I'd describe a satellite pass. You may even have seen the International Space Station - I think it's currently visible in your part of the world.
We see satellites the way we do planets and the Moon, by reflected sunlight. When they go into the Earth's shadow they disappear, so this is a distinctive feature.
A meteor (shooting star) would move very quickly. (As in someone shouts "There's one!" and it's gone before you can turn your head.) Comets move, but not fast enough for you to see one moving - usually, you have to get a positions on successive nights to see it.
I often go out to watch the ISS going over, especially when it's very bright pass. But if you're outside for long enough you should expect to see a number of satellites.
You need to go to Heavens-above.com
. If you register with them (free!), your viewing location shows up each time you log in, so you don't have to input it. They have info on the ISS and a number of other satellites, as well as sky maps for any time and location you request.