Read what you just said:
"and it is 8.2 and he said that it isnt THAT big of a deal considering the average is like 6 or something"
Its been said before and I'll say it again, most women don't care as long as you use it right. There are some women of course who only like big, like some men who only like large boobs. By like I mean they won't have sex with any other. Now of course this isn't a general thing, otherwise how would women with small boobs ever get laid?
Same with men with average or small penises. Learn to make a girl come, with oral or proper technique, not size.