twitter at browser always doesnt recognize my password.

Hello anyone can help me?

I had a fight.. at twitter to a model.... at first shes following me. as i promise to increase her followers then block me. because i bought gig from fiverr to increase her followers i just want to helpp though. didnt give me a chance to explain,she recieve a lot of egg so she get mad..at me. block me..
She got many resources i think hacker,computer geeks shes rich.
last night all my yahoomails, twitter, can login.. thank god email save me toreset password. But its not yet done.
at first i succesfully login to my twitter account today, then just a try i visit her twitter even though she blockd me already.
tried to sign out a bit.. then i login again.. it doesnt recognize my password anymore, althought i can reset password and send at my email.again
my problem is..all my browser doesnt recoginize my twitter login, i just succesfully login lately when i visit her profile cant login anymore..all my browser but when i tried to login at my mobile phone.. i succesfully login.but in my firefox,flock i cant,
i clear cookies but doesnt work won let me login.
shes so bad.. i wanted to say sorry.. but shes into my passwords,emails now
can anybody explain this?
what can i do to my firefox, flock to protect it, so his hacker wont touch my twitter again.
Pls help.

Leave her alone you stalker!