Suing eHarmony to match gay couples is like suing Abercrombie & Fitch to cater to dwarfs.
There are plenty of other online dating services from which to choose -- and if you don't like any of them, then start your own! Forcing a company to cater to a certain demographic is ridiculous.
Nobody has an innate right to be a customer of a private corporation.
Now we frickin' have to deal with idiots who think that eHarmony was successfully sued. eHarmony settled; they wussed out. Their decision to start a new dating site was not mandated by the courts -- and it wouldn't have been, either (not justly, anyway).
If the Church of Latter-day Saints officially uses this issue as fodder to "prove" that religious freedoms are in danger... well, there's not saying what I'm going to do -- but it will be out of complete frustration, and I'll probably regret it.