"Lovin' don't last. Good cookin' do." Old truth.
Yes, it can. My father has been married to his wife for 25 years and they are not in love at all, just good friends that tolerate each other.
It has lasted thus far with my husband and I (8 yrs and counting).
It depends on your idea of In Love. It's not what most people "Dream it to be". :)
Have you been around an elderly couple recently? All they do is quarrel!