Acamea…. I couldn’t agree more with you. Lasting love is a CHOICE. And, as you say, ‘feelings’ are a byproduct of Love, and not Love itself. The feelings or physical chemistry, can change or fade, or whatever, but that does not necessarily mean that Love is absent, or has changed.
The key is daily choice (as Kris Gage has written about extensively) and responsibility / accountability. Or, in other words…. Responsible Choice, or Choice with Accountability. Without this critical factor, we are left with the ‘all to frequent’ Bright Shiny Object experience.