As someone who has undergone surgery and received breast implants three times... I am now a D cup. I started off as a AA... I can tell you it's not going to save your relationship or make your partner love you anymore.
I was with the same man throughout all of my procedures and he hit me when i was a AA and he hit me when I was a D...
If anything, do it for YOURSELF and your own self esteem. No one elses.
I don't regret having it done now because I can find bras and I fit into clothes better!