so in addition of filling form i-130 what do you advise me to attach with it .....
Not necessary in your case, as you have been living together for 5 months.I have somewhat similar question, so I don't want to start a new thread.
I had long distance relationship with my spouse for 2 years. Then we moved in and lived together for 5 months before we got married. Now we're still living together and will have interview soon.
My question is: Is it important for us to bring evidence that we were in regular contact with each other for those 2 years? I only have air tickets, but no phone bill or letter.