It's not that Orange or even Red can't feel love or empathy. They can. The issue is the level of sophistication these emotions, the level of self-awareness, their depth, and their extent.
For example, Red and Orange will feel love, but that love will be very limited -- their circle of concern does not extend very far. It only applies to their family, close friends, and their nation. And even so, selfishness will limit that love even within family. Red and Orange will also treat love as "merely an emotion". Their love will not have an existential aspect. Their love will not be universal. They will not understand how deep love goes or the power of love. They will deny that love is an Absolute or a property of the universe. They will value money and sex over love. They will mistake love with sexual desire or material possession. They will be so stuck in their left-brain that they will think that logic is superior to love. Their hearts will be closed. They will not have a "Teotlized heart". Whereas a Green person will understand the importance of love more. The Green person has some opening of the heart. But Green still does not comprehend love as an Absolute. Green still does not understand what love is. Green's love is still not fully universal. Green loves to hate Blue & Orange. Whereas at Turquoise love becomes an Absolute -- finally, it becomes totally universal. Finally the constant judgment and criticism and hatred are purified in the light of consciousness. Love is no longer something you do, it's something you ARE. Now you have a Teotlized heart which embraces all of Creation. At this point, your love is so great you are incapable of seeing evil, enemies, or wrongdoing. All sense of "other" starts to disappear. Everywhere you look you only see your Self, you only see Goodness, you only see Love. Your love becomes not about having or receiving but about giving. You love while simultaneously being detached from the objects of your love. Your capacity to love increases exponentially and the depth of your love goes through the roof. Your love becomes unconstrained by ego.
This is not just about feeling an emotion. This is about changing your entire attitude towards and understanding of reality. As you understand reality deeper (at higher Spiral stages) your emotions will change. How you see the world affects what your emotions are doing because emotions reflect your needs and values. As you move up the Spiral your needs and values change.
Practicing unconditional love is a great way to develop emotionally no matter what stage of the Spiral you're at. You can always love a lot more, a lot deeper. So when it doubt, love more! This one approach can transform your whole life.
Emotional development is probably the most important of all developmental lines. Because emotions dictate your whole life. Emotions are more powerful than cognition. Which is why all advertising, marketing, and politics is played at the level of emotion. To get someone to do something you must trigger them emotionally. Logic is cheap.

I would try EEG Neurofeedback Therapy, like this:
 

Little by little i come to same realisation about nature of Awareness when doing self inquiry ... Thank you for sharing this

@Emerald What you're missing is that attraction is not a rational choice.
See, you're evaluating this whole situation theoretically, which is not at all how it works in real life. In real life, if a well-dressed, nice-looking guy with a big smile, confidence, and swagger stopped you while you were walking down the street and told you he found you attractive and had a fun conversation with you, all of your logic would fly out the window. It doesn't matter if he's "using a pickup line" on 100 other girls. A good approach is a good approach. The line is irrelevant. The words never matter. It's all in the tone and body language. You would be flattered, your self-esteem would be boosted, and maybe you'd get attracted to him. Attraction is never a guarantee. Often the chemistry just doesn't happen. But attraction is not something you logically decide upon. It happens near-instantly based on deep subconscious cues. Attraction happens within 5 minutes. Within 5 minutes the girl determines and demonstrates whether she's willing to sleep with the guy. The rest is just comfort-building. But she is not conscious of any of this. It all happens automatically.
What you're not factoring into your theory is that that guy could actually attract you! If you're being fake polite, etc. that means he hasn't succeeded in attracting you. You've succeeding in rejecting him. His job was to bust through your automatic knee-jerk defense mechanism. He must do that through charm, confidence, and humor, not through meeting any logical criteria you have. Obviously if you're already married with a kid, you are much less open to approaches. But consider if you were single. (BTW, if the guy knows what he's doing, he'll check your finger for a wedding ring before even approaching you).
Attraction is a very counter-intuitive thing. Be careful underestimating it or logically analyzing it. There is zero logic in attraction. It does not happen based on any rational standards that you may think you have. Which is precisely why girls easily get attracted to scrubs who abuse them, and yet the girl only gets more attracted!
And even if an approach is a nuisance, this cannot be avoided because the guy has to approach the girl because the girl will almost never approach the guy. Yes, the girl incurs the cost of a creepy approach. On the other hand, the girl is freed of the hell that is approaching. You girls have no idea what it takes to make a natural approach or to be rejected dozen times in a row. You should be thankful you don't have to do it.
It is the guy's job to approach and the girl's job to screen him for quality. That is how human mating works. Not unlike the courtship rituals of birds.
Part of the cost of being a hot girl is that you will get approach a lot. That's both a blessing and curse. And you're not going to change that. Guys are wired to approach you. And you're wired to screen them.
The thing with approaching is that it's not supposed to work 95% of the time. 5% is all it takes for love to happen It is just like sales. And sales works precisely because people buy.