US Immigration from Hungary

Hi,everyone

Visa journey and people here was a great help while I was going through my immigration process. I was F2B category. And by this category I was not able to get married until I enter the US and get my green card. It was long 8 years of waiting process. Now I have to start all over again. immigration process for my girlfriend that was left in my home country.

As soon as I received my green card and became a permanent resident I flew back to my country and we got married. So now she is F2A category and can qualifiy for CR-1 visa ( which is TEMPORARY banned - I know :(( but still I can apply to USCIC.)

Now a tricky question-

we were a couple for 20 years but was never officially married (last 8 years because of my visa category). When now I am applying for her I -130 can I show that although officialy I was single we were living as a couple and you could say in a common law marriage??? Will that fact not harm my GC status?

Or should I just tell that we lived together only after official marriage certificate ( she had a differnet address)? Also should I show as a proof of our relations that we always traveled on vacation together?

Thank you in advance who will share your thoughts.

God bless