How should I defend my girlfriend..I think my guy friends are jealous of her and me together...?

I am a shy college guy who never ever thought I would have a girlfriend..it turns out, I got the smart, goodlooking girl most guys wnat,but couldn't get..many tried..I did not go after her..she came after me and I ran from her for a long time before going out with her.....but, my guys friends make rude comments about her...they say