I'm "in love" by choice. Love is a verb. When we say we have "fallen in love" or "fallen out of love" we try to equate our love as something beyond our control. Yes, there is period of time when your hormones and chemical calls are firing on all cylinders, but that eventually fades into the clarity that the enables two people to create a life together.
I absolutely worship my wife. (It's not quite idolatry, but close) I remember when I was a teenager I would hear President Hinckley tell husbands and wives to be "fiercely loyal" to each other. Now that I'm married I can see why he was so adamant. I can see you have to be consistently aware of your words and actions when you hold the heart and feelings of another person in your hands.
Please remember that there are two types of love - the love you feel without having to do much (high chemical, low clarity) and the love you choose through deliberate action to put someone's needs above your own (low chemical, high clarity). Both are beautiful parts of life.