Ohayoo Guzaimasu! 
6 Tips on a Foundation of a Happy Marriage
Trust - if you trust your spouse, then you can feel comfortable with them having relationships at work, with friends and family and being themselves.
Communication - Partners must share their feelings about life, each other, themselves, etc. In order to understand each other, communication must be present.
Respect - means not just respectful behaviors but also respecting each others individuality an differences
Friendship - A spouse should also be a friend, someone you can count on when you are in need, someone who accepts you for who you are, someone who has things in common with you, someone you enjoy spending time with, someone who is comfortable to be around, etc.
Affection - everybody needs to feel special and loved
Love - Love is patient. Love is kind. Love is beautiful. Love cannot be forced or faked. If both partners do not feel love for the other the relationship is not at its best.