Some poetic techniques used in this song are:
Simile - "You ought to keep me concealed just like I was a weapon". This simile helps the reader/listener to realise that he is a bad/dangerous person in this situation.
Imagery - "I'm gonna get you to burst just like you were a bubble". This line puts a representation of a picture in the reader/listeners mind of what will happen.
Repetition - "another way, another way, another way you hurt me, baby". The singer has chosen to repeat this not only to make it catchy, but also to emphasise she hurt him repeatedly in many different ways. She continues to hurt him over and over.
Rhyme Scheme - The rhyme scheme in the first stanza is as follows: A-A-B-B-C-C-D-D.
Alliteration - "Try to say live, live and let live" This line has 4 words starting with the letter "l".
Assonance - Assonance is a line which has words with the same vowel sound in them. An example in this song is the line "I didn't come for a fight but I will fight til the end". The words "I" and "fight" are both repeated twice giving the "I" sound four times. The words "didn't", "will" and "til" all have the same sound too.