Yeah, Proviron is a DHT derivative straight from hell. I never experienced an increase in aggressiveness from any roid, including test, d-bol and fina.
Post cycle I used some Proviron at 50mg day to help with sex drive and was shocked by the affect it had on me. Permanent anger, annoyance, everything pissed me off. I did not act up on it, I can control myself, but it kind of sucked.
But yes, it helps with libido, makes you horny as hell.
BTW: it gave me acne, which I never had before. It disappeared a week after discontinuence.