First of all, try to spend as much time with your soul-mate as possible. You should go out with your partner on a picnic, have dinner or go for watching movie. Try to stay together as much as possible which will build a strong bond between both of you.
Show affection and love for your partner which is the most important element that provides a strong foundation to a relationship.
Try to console your partner whenever he or she feels sad. Hug and kiss her to ease his or her nerves which will also make you both release that you are together to face hard times.
Let your partner know that you the luckiest person in this world because you have him or her. Show your love and compassion to each other which will make your relationship everlasting.
Make sure you give space to your partner that is also very important. By not doing so, you will cause trouble in the smooth sailing of the relationship. People always feel a need to refresh their minds, and giving each other a space can eliminate many problems.
Always try to tolerate and forget the mistakes of each other, which is one of the most important things to build a solid foundation for a relationship. Never try to accuse each other which can eventually cause damage to the relationship.