My pack wasn't perfect or anything but this was my contents page (I tried to make it easy on the USCIS people). I was concerned about showing financial intermingling so I did some awkward thing to show money I was transferring to my partner's account. To be honest, if you are still together then I wouldn't be worried at all, i751s are rarely rejected and if I skipped the interview even with a divorce I'm sure you'll be fine.
Here you go: