I remember reading an M. Scott Peck book decades ago. In it, he said that, over the long term, love is a choice. You choose to love your partner ever day, even when he/she is being disagreeable or annoying, etc., i.e., in those moments when you’re “not feeling it.” It stuck with me, and I’ve learned that is is a truth that helps me through those every once in a while times when my otherwise wonderful husband is being Eeyore (which drives me crazy) or his more frequent lapses into borderline OCD behaviors relating to health. He’s not always perfect, and neither am I. But our relationship is.