1. Never dig into the past. Be mindful in present with your partner.
2. Understand everyone is imperfect. You just need to be happy that you have got the right one.
3. Don't restrict. Be open-minded. Have trust in each other.
4. Never let communication fade, especially during a long-distance relationship.
5. Don't always talk about sex.
6. Adjust a little, and be mature, when needed.
7. Don't lie about anything.
8. Communicate and sort out.
9. Don't intentionally make ur partner feel jealous...don't joke with their emotions it's not good.
10. Always stay loyal, it's not difficult.