My ex was 7 years older than me. my boyfriend is 9 years older. one of my friends' dh is 30 years older than her (yep, she is 20, he is 50).... (i personally think that is too far of an age gap, they seem to be doing just fine but in another 10 years or 15.. I dont know, the only men she finds attractive are between 40 to 55 yrs old).
My dad was 50 and my mom 18 when they decided to get married. So no, I don't think 9 years is that big of a deal for SOME people. It's hard to have a long term relationship with 5+ years sometimes. At some point you will both be in different part of your life. But, it's not impossible to over come. My parents were happily married till the day he died in May. He was 83 and she is 50.
My husband is 28 and Im 22. It doesn't seem to be a problem for us. When we meet it was kinda fun explaining it to my parents. (I went to Yellowstone National Park to work not find a man) However it hasn't seem to be a problem at all. It is always kind of fun to hear about stuff that was going on in the world or the "kid crazies" that I was either not around for or to young to remember! POGS lol
My sister was 18 when she married her 33 year old husband. That for me is a stretch but I guess if your in love younger or older you'd find a way to work through it.