Surgery has so many possible horrific outcomes…it’s dangerous man.
You will never be happy if you aren’t happy now. If you can’t accept yourself now you never will simply because you gain an inch downstairs. Trust me, your mindset is the problem, not you’re dick. I say that in the gentlest tone. I’m not downing on you. I fight the same demons. If you don’t tackle the mindset you’ll be unhappy plain and simple.
Accept yourself man. Be good to yourself. How can you treat others right if you don’t even treat yourself right. There’s no light switch to flip to stop these insecurities. It does take work. Just like lifting weights. You practice refuting those thoughts as they pop up. Just like training for a marathon, you get better each day.
Don’t go a step further until you’ve really thought about where all this is coming from. I know this is a penis enlargement forum, but dude, I hope you hear the vets here telling you that happiness is not found in a big dick. Don’t go looking for it there.
P.s. I’ll say it again, don’t project your insecurities onto your gf or her words. It’s like sand in the shoes. Be open with her but give her room to be herself.