In a nutshell, sacrifice is the key. By the time your mom carried you for however long you were developing she had to sacrifice. She sacrificed her health, diet, girlish figure, morning sickness, time, and job performance. All of this doesn't include the cost, and the amount of pain that you caused physically. Being a dad, I witnessed these sacrifices in my sweet wife, but it was easy enough to absorb the impact in my wallet. The sacrifice to the father doesn't kick in until the birth. I'm not speaking exclusively of the baby keeping him up at night, but also making bottles, sharing the chore of sitting the baby and child, accommodating the woman with the duties that have increased. Our laundry doubled with our first child for example. So, these sacrifices may cause resentment. I know that they did for me. Although it is hard for me to admit it, with each of my children there was a stage in my mind where I resented them. Of course I powered through, and doing so caused me to reflect on what made me love my children more. The sacrifice that I made was only a fraction of what my wife went through. The sacrifice that I made for her was relatively small, but it helped me to realize the sacrifices that she had made for me, our son, and our family. My glimpse into her sacrifice caused me to love her even more.

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But Marko, this key doesn't mention how to de-funk. It just shows how to increase the love for someone.

True enough but it's a step that leads to the answer. The two things aren't that different.