Allot of good advice here... but as a friend of mine likes to say... advice is worth what you pay for it.
IMHO the age diff is not a deal breaker.
However as others have said you are in the infatuation stage and you really need spend some time with this lady and see if you are comparable.
Talking to the knuckleheads here is a good sounding board... however only YOU know her and how you feel about her and hopefully how she feels about you... also looks at the comments you are getting here and look at those posting, are their values the same as yours? Or the opposite?
Over two years ago I posted here about a lady I was thinking of marrying... some were yay and some were nay... after much though we went ahead and got married... it has not all been fun and games but it was by far the best and most important decision of my life.
So I vote for go for it... but not marriage just start a relationship then once you REALLY know each other talk about it... a lot, one step at a time young jeti.
Just my two cents.