Agree. It also doesn't mean she's obligated to remain in the relationship if he's treating her poorly, disrespecting her, cheating or other issues that are detrimental to her well being.
But when the love is pure and genuine and REAL versus based on the superficial like looks, status, money etc, it does NOT just die when the relationship itself dies. Or if god forbid, HE dies.
There will always be a part of her heart that feels love for him on some level even if it's not as intense as it once was.
That's unconditional love, at least to me.
It's how I personally love. It only happened that way with one other man besides my husband, too long of a story to get into now.