I feel infinitely powerful to be able to think people and human actions in terms of "incentives" and "game theory".
I you dont know a person, these are the best euristics to use to understand and predict his actions.
Sometime, the asymmetry of human being make these euristics able to predict the actions of our relatives better then other metrics we can develop.
Maybe your wife "loves you" because for long time you have been her better option? What if a better option comes to her at some point?
Here comes ethics and morals, the power of doing good things when its difficult, when you could run out with your "better options". When doing the good thing become difficult, if you still do the good thing, then you are good.
People ignore completely what I'm saying here, and without a forma-mentis of this kind, they are just so weak.
Its difficult to elaborate as a concept, its easyer to put the people we are attached to the "they love us" box and our enemy in the "they hate us" box. Its a guilty pleasure to think that the "disney love" is real and we can trust our princess, and we are special humans.
Embrace reality, go out your confort zone, exit the platos cave, and after some sufference you will rise as a phoenix, better, more powerful and happier then before. Even better capable of truly love.