Okay, there's a VERY, very POPULAR rule out there.

"Take half your age, add seven."

And for the most part, I think it's accurate. But before DEDEDE comes in here saying society is wrong to put such labels, let me clarify one thing. I'm not a believer that certain people shouldn't be together because of their age... but well, there is a maturity difference. And you'll realize it, one way or the other, if you're on the older side or younger side, that it makes relationships difficult to work. So the half your age/7 year rule actually just speaks to the maturity/stages of life. I'm looking at it in that aspect, rather than the morality bullshit that is usually the first thought when this topic is brought up.

I think it does but I have an aunt and an uncle who are twenty years apart from each other and they're still together after all this time. Like Ken said, it's accurate for the most part. I know for me though, I'd like to be with someone who's at least a couple of years younger or older than me.

Eh, it's subjective. It can make a difference in a relationship, good or bad, but at the end of the day it's whatever makes you happy (JUST MAKE SURE YOU'RE BOTH LEGAL).