I was shocked that they didnt give you a red slip. I am trying to get my wife here. and this is my first marriage, I went to back china for 2 yr, met with my wife in GZ, got married and have a 1 yr old daughter. I never thought this is gonna be a problem, we have child together. Really, whatelse do you need to prove my relationship. about "state all trips to China"? Can you just show a copy of your passport to them? What else you need to show them? I lost all my airline ticket, and really who gonna keep those stuff. I thought as long as your relationship is real and you have all the documents they required , you will be ok. I guess We need to prepare extra stuff for them to check.