Every Successful Relationship Is Successful for the Same Exact Reasons
Get good at forgiveness
Most successful couples don't resolve all their problems. It comes back to respecting your partner, who will have different values and perspectives on some things. The key here is to abide by the difference, love them despite it, and when things get a little rough, forgive them for it. To get good at forgiveness, remember:
When an argument is over, it's over. It doesn't matter if someone was mean and someone was nice. It's over.
There's no scoreboard. There's no, "You owe me this because you didn't do the laundry last week."
When your partner messes up, separate the intentions from the behaviour. They messed up, not because they secretly hate you, but out of ignorance. Believe in their good intentions.