Personally I think the parenthesis is overused, but it's well-written besides this.

"I am addicted despite the sadness." I like that you repeated this line at the end - it tied the poem together well. Some of the lines in parentheses would probably be better without them (e.g. 'I still need his attention' and 'He will be unworried'). I like the mix of friendship and romance in this poem - it's relatable and genuine. :)