Dysfunctional because pretending to be "the subject, object, predicate, sentence, and the paragraph" is just that. You're not going to get that even in a relationship, unless you want a slave, not a girlfriend. People (male of female) have problems , they want to vent to people that they feel close to, no need to be egomaniacal about it.
Impractical because excluding yourself from 50% of the human population unless for sex is not going to do you any favour.
Petty because you would only take the opportunity to talk about their stuff if you can " actively undermine her relationship". Don't you realise how assholish that sounds? A girl feels vulnerable, opens herself up, and you plan to fuck her life up?
Dumb because all of the above.