Triangular theory of love

Last time when I studied psychology, there's a theory of love which I think quite close to what I think of love. It's a theory developed by Robert Sternberg called Triangular theory of love. According to the theory, there's 3 important elements in love: intimacy, passion & commitment. Combine all 3 elements, one can has a consummate love, the complete form of love that represent the ideal relationship towards which ppl strive. Well, with the diagram I guess it will be very easy to understand.

But according to the founder, it's not easy to achieve consummate love, which I strongly agree. I will see love at first comes in intimacy(if it's from friendship) or passion(if it's love in first sight). Then slowly it will comes another element (intimacy or passion, which ever that did not came in first). For commitment, it's really not easy nowadays. Not only men doesn't like to commit in a relationship, but women too. Commitment become a pressure and burden.

Well, until the day both committed, you think that's the end of the story?? Princess and her prince living happily ever after?? Nope. Maintaining this consummate love is even harder than achieving. Even Sternberg also agreed on that. To me, the route of love is from liking, to romantic love, then finally I got consummate love. But it just hard to last... Sometimes passion faded, sometimes intimacy faded... So from consummate love, it often changes to fatuous love or companionate.. However, what I really afraid is the love become empty love. When there's only commitment left, for me, it doesn't means love anymore...

I really do hope I can keep the intimacy, but I'm not sure what's went wrong that took away it... When there's no more intimacy, I felt that passion is going away too... OMG!! I really dunno what to and really hoping for help...