There can be different and very many ways to keep a a relationship working and healthy depending on different aspects.
The following are 15 ways to keep your relationship working.Work on them.
1. Love each other
2. Don't lie
3. Keep communication open
4. Stay sweet
5. When you get hurt just forgive and forget
6. Never talk about break-ups
7. Never say it's okay even when it's not
8. Forget about "pride"
9. If you say sorry mean it
10. Don't compare your past with your present
11. Don't talk about your stupid ex's
12. Give and take process
13. Beware of his/her feelings
14. When you had a fight, don't let the day pass15. Don't be the perfect one, be the right one.
Mostly important, Pray together for everything.Godly relationships are forever relationships.
I wish you all the Best.
May God bless you abundantly