I assume you mean romantic love...
I do not know if you are religious, if so, I have a passage for you. If not, bare with me because I am not all that religious myself, although I feel there is wisdom to be gained from reading all kinds of literature. Now, "Love is patient, love is kind, it does not envy, it does not boast, it is not proud. It is not rude, it is not self-seeking, it is not easily angered, it keeps no record of wrongs. Love does not delight in evil, but rejoices in the truth. It always protects, always trusts, always hopes, always perseveres." Corinthians 13:4-7 This passage tells you what love is not, what love is, and not so obviously; what makes love strong. If you are not religious then think of this. What is the foundation beneath some of your strongest friendships? Trust? Kindness? Understanding? These things should be included in your love life as well. Your love should be your best friend, as well as your lover. There should be no secrets, upmost understanding, kindness, forgiveness, respect. It is an honor to share love with someone else. Also, everyone makes mistakes. It is hard to keep all these things in mind, so when something goes wrong, TALK! Be fair, and listen more than anything. Hope that helps!