What is it that makes long term relationships work? please help!?

Ive been with my boyfriend for over two years now and we live together. I noticed that quite a few of my friends who have been dating somone for along time are breaking up. and I thought they were fine!





How can I keep our relationship strong and last? We are only 19, but I love him. Im just afraid after seeing my friends break up that we would randomly break up too. please helpWhat is it that makes long term relationships work? please help!?
Good communications. As simple as that.What is it that makes long term relationships work? please help!?
i need to know to same problem =[