Love, by Contrebasse, is a wonderful analogy and a genuinely fun game. It can be found here: http://www.kongregate.com/games/Contreb ... plete=love
I recommend playing it for a few minutes (be sure to go through the tutorial) before trying my demo, since it is essentially an emulation of the above. Once you've had your fill of Contrebasse's excellent offering, have a gander at True Love: http://www.mediafire.com/?9lsrivk22h0bki7
Instead of gleaning happiness from any Other, True Love has you focused on one particular Other, with the rest serving as little more than distractions. There is no tutorial just yet, but the post-game tips should help a bit. Please let me know what y'all think; any and all feedback is welcome.
edit: switched link from rapidshare to mediafire