How will genomics affect dating and marriages?

[Aroura]

You have to be able to tolerate the person (forever!) as well as wanting good genes.

Also, many couples are voluntarily childless nowadays. Lots of people are looking for a lifelong partner, someone to keep company and grow old with, not necessarily a breeding partner. For that genes matter less, and personality much, much more. So you'd still have to date traditionally.

Getting to know a person isn't going anywhere anytime soon.

[Astreja]

My point is that only a person's genes are passed on to the next generation, not necessarily all their qualities. So, it would be wise to ignore a few personality flaws in a person provided they have great genes. And you don't even need to meet a person to determine if they have good genes; you just need their DNA. I just happen to believe that good genes in a partner are more important than superficial qualities.

Edit: This is true only if your end goal is making a healthy baby. If you're just using the dating process as a surrogate for companionship, personality and looks would trump genes.

I'm no longer of reproducing age, but if I had had to choose between a nice person with an iffy genome and some arrogant S.O.B. with The Best Genes There Are, I would opt for the nice person 100% of the time.  No question.