Trish tilby also has contributed unintentionally to some measure in that she was ethically bound to bring forth existence of x men to the public despite their need of secrecy for operating. she also disclosed the name of the first human to be infected with the legacy virus which no doubt fomented anti mutant hysteria and which the beast saw as a act of betrayal and broke up with her.speaking of breaking up she was also responsible for emotionally scarrng beast for life when she broke with him in a most insensitive manner because she feared he may compromise her career during the phase of his secondary mutation. OK I exagerrate but it did lead to him loathing his mutation that much more as he was at a vulnerable period of his time unsure whether he was still a human and needed her love and support.