A Sierra Designs Clip Flashlight 2 person is really light and too small for two "normal" sized people. It won't break the bank either. The Mountain Hardwear Sprite 1 is a nice choice too. Not too crazy about how it pinches in below the chest area tho. I am 5'11" and about the max size for any 1 person tent I have tried. In the past I used a Walrus 1, an MSR 1 person, and a Slumberjack 1 person, all of which are no longer manufactured.
Let us know what you pick. One person tents are hard to come by all of a sudden.