I love this so much. Booth jokes that she’s turned him into a monster but what it really shows, is that it’s Brennan’s influence that helped him score his highest mark ever. Brennan makes him want to be a better person, to be the best version of himself he can be, for her. (And it’s not like Brennan nags at him or anything, he does it of his own accord.)
Heck, he stopped gambling shortly after he met Brennan! And he barely knew her then! But even in that short period of time, she had such a profound effect on him and a decade later, we continue to see that impact on all areas of Booth’s life. She makes him want to be a better man.
Also, Brennan is so so proud of her husband (!!). She’s practically glowing with love and happiness. They really are the best couple ever.