I'll have to give it a look. The patient kind love seems less prevalent these days. The more mundane love is the more resilient it seems to be.
Then you'll be disappointed in this movie...
Spoiler alert... Spoiler alert...
He spends half the movie in denial about her condition, rejects advice from her daughter to put her in a home because she sees he himself is becoming delusional about the care of his wife and can't meet her needs, especially as he's not mentally processing where she is and where she's going with her condition, all because he promised to not put her in a home or hospital. He hires a nurse who abuses his wife, fires her, leaving him alone to care for her again. Then after talking about their life together and she smiles at him, he suffocates her, decorates her bed with flowers, then it ends with a scene that implies he either killed himself or dies, is mentally in the same spot his wife was, or up and leaves her and goes who only knows where, leaving their daughter to find her body left locked in the bedroom of their apartment.
I don't exactly view that as a testimony of love to agree to care for your wife no matter what, excluding medical care from qualified folks, because you feel it's your obligation due to a promise you made, only to suffocate them to death because their care is too individually challenging, leaving their body to rot in the bedroom without proper burial, service, funeral, or religious rites... While simultaneously shocking and burdening your children with the aftermath of your decision to not only kill the mother they begged you to seek help in caring for and abandon her body in your home, possibly killing yourself as well. Honestly, it's selfishness disguised as selflessness to somebody who's really only thinking of themselves, not what's best for his wife, himself, and his daughter.
The better realization of unconditional love, IMHO, was to tell her the story, admit to her that he couldn't care for her as he wanted to, make peace with her condition and that he didn't realize what it entailed, and gotten her the help and care she needed, stopped isolating his wife from their daughter, and then had an epilogue with him staying with her, day and night (like he promised), in a nice hospital, hospice, or special care facility (they do exist, by the way), and seeing that the family had been reunited together to see that her care and quality of life was the best it could be while also doing their part to meet her emotional needs, despite her inability to maybe even feel them, but certainly unable to acknowledge.