Here's a piece of second hand advice -

"If you're going to be a pilot...do yourself a favor. Pick out 3 girls you absolutely hate and buy each of them a house and a car...you'll save money on the lawyers later..."

In all seriousness...I still say it depends on the person you're with and the relationship you have. Some make it, most don't. That's the way of the world. And if it makes you feel any better Soon2BFO, I have the same worry...but I'm not 30 yet so it's not a big worry.