I'm not a fool, I'm just lifeless too
The girl and Abel are both lifeless which allows them to relate to each other so well — Abel isn’t dumb, he just want his benefits as well.
In addition, Abel continues the relative tone of the song by saying he, too, is “lifeless,” or an emotionless, “nonchalant” person. He doesn’t love the woman for a personality or possibly even looks more so than he loves the fact that she can actually relate to him, that they’re both “dead inside”.
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