Married people help!!!! or just give me advice?

so im 19 and i met a guy 21. at my school who im really in love with...BUT we barely met in October 2010 and we hit it off on the first day we met...we both live on campus so we spent ALOT of time together literally! yet were still crazy about each other...hes VERY different than the guys i dated before (athletes/hot guys) hes sooooooo smart nd cute but hes very nerdy and as corny as it sounds i can be myself around him and he knows everything about me :) we are considerng marriage and we lost our virginities with each other it was very nice but i felt really bad after it happened...i told him i never want to have sex again until marrriage and he really understood (I know hes nothaving sex anywhere else and i know i was his first so im not being "played" .hes really the nicest guy ive met hes soo patient and sweet and i even introduced him to my family (not as my bf) we want to get married asap and since our school is covering EVERYTHING for him (school,housing,extra cash,job,car) we'll be REALLY great for about 8 years if even with kids. I want to marry him but im so SICK of everyone making jokes saying tht hes only using me to get a green card or hes crazy because he survived the Rwandan genocide. but he feels soo real and people dont know what we tlk about. hes in rwanda right now for summer internship but we want to wed i havent old my parents yet but his parents r ok with it eventhough i havent met them yet...should i wait??? is it okay to move this fast??? were technically grown right??? hes not crazy and he doesnt push the green card thing on me ever nd hes never flipped out from genocide memories..but he does cry sometimes i dnt think he'll ever hurt me and im not being nieve someone please!!! i need advice i havent tlked to anyone about this....srry i wrote alot