Welcome to the forum Neneetik!!
Some women actually don't like huge cocks because of the pain. If she's expressed that to you, you should listen to her.
Also, even your before stats were good, solidly above average, but now at 7.2"X5.1", you're plenty big. Sounds like you should watch her body language and if she's starting to show discomfort during sex, work on a cementing routine to maintain the size and EQ.
As far as the mental bit, remember that there are some women, even good, caring women, that will tell you you're the smallest they had, JUST to take a few notches out of your confidence. Unless she has been statistically lucky, I doubt she's been with 10 men who were ALL 7.5"+.