Very good point about how he enjoys his mania, even though it's an angry mania. Anger, especially self-righteous anger, is probably one of the more positive emotions he can summon at this point. It's been many years since he was genuinely happy, and the alternative to manic anger is depressive sadness, the bipolar doesn't really allow for much else, especially unmedicated.
I also think part of it is narcissism and the way he feeds it with his delusional worldview. Lucas basically sees the world like this: he is a kind, intelligent, attractive, plentygood man, who is radically progressive, a cool disaffected rebel who is poor by choice because fuck capitalism, and a self-taught science prodigy with important contributions to the fields of time travel and telomere science. And all this absolute saint wants is the basic normie dream that everyone is entitled to fulfill: to find a woman to fall in love with, marry, and procreate. But alas! This angel has been born into a corrupt age! Although everyone around him professes high-minded selfless ideals of socialism and/or Christianity, every single other person is a morally rotten hypocrite who practices the opposite of what they preach, leading lives of unchecked materialism and sexual debauch, while cruelly excluding near-virginal Luke from their wild and promiscuous hookup culture, while cock-blocking, catfishing, and trolling him at every moment, saying mean things to him on the street or even in empty rooms sometimes.
The absolute
martyrdom this motherfucker exudes in every post and video is fucking insane. Self-righteousness and victimhood at this level is essentially narcotic, in fact narcissism might be defined as an addiction to this feeling. Werner, Greer, or any NPD cow you could care to name, all use narcotic martyrdom to try to balm the raw psychic wound that is their actual, much-denied self-image: that they hate themselves far, far more than we hate them.
It's very counter-intuitive to sane people, which is part of what makes thinking about insane people like Lucas so fascinating. Yes, he actually
enjoys the emotional masochism of imagining the woman he will one day marry having disgusting sex with disgusting men. The pain only proves what a fucking victim he is and how horrible the world is for treating him this way. How fucking dare those imaginary people have imaginary dumpster sex