Is three and a half years a big gap in a relationship?

First, race should have NOTHING to do with with the relationship, if you like him and he likes you than great! And 3 1/2 years is not bad. It could be a good thing because you guys will be at around the same maturity levels! There is a hand rule, where you are the index finger and you can go one year under (thumb) and three years older..but I think that half a year is nothing to worry about!