Determine the valence intensity of the following tweet, considering the mental state of the author. Assign a real number between 0 and 1, where 0 denotes extremely negative and 1 denotes extremely positive.
Tweet: @wizkidayo Bro u just dey burst my brain Bro I need u 2 pls end everything rift BTW u nd my hommie davido pls Bro 4 d sake of luv.