I find your story hard to believe, but lets assume its true.
Now we have to verify if HER story is true.
Some women here claim that they just have luck and run into 8 inchers all the time. See, if you do the math, statically it is very unlikely, unless she was a porn star and the job provided her with endowed men. Besides, the true average around the porn indusrty is really 7 inchers, (from what I have read). Camera tricks and angle manipulation make things look bigger.
OK, lets give her the 8 inchers in length. But when she says her average is 7 inches in girth, you dont need a lie detector for that. You cant even get many 7 inch girthers here. And the few guys that have it, got it by pumping, for YEARS.
Now the bad news. If what she is telling you is true, then the two of you are NOT sexually compatable. Meaning, you cant give her what she wants. Your body was not built to satify her.
Even if you start to do PE, you are looking at a minimum of 2 years, for the length, and longer for the girth. Is she going to wait 2 years?
And the weird part is, you dont have a small dick. You are on the upper side of average. In other words, you are above average. Especially in girth.
And, do you like blow jobs? Because you will not get them anymore with a 7 inch girth.
You need to find someone you can be sexually compatible with.
My guess, is that she is trying to break up with you and found the cruelest, meanest way to insult your male ego by:
1. Stating how you dont measure up
2. Comparing you to past experiances
No caring woman would ever bring stuff up like that. Somebody is lying, and that is bad. But the only thing worse than that is if all of this is really true.
(actually no. Because then you could find someone else that you could make you feel good about yourself and will apppreciate you.)
good luck