This harsh disclosure is further supported by a single emphatic statement: I am trying to be truthful.
In doing so, the speaker is perhaps attempting to justify all that has been said so far, and continues to stress the desire for honesty within the relationship. Through this openness and frankness, the speaker is attempting to stress the significance of truthfulness and honesty in the relationship.
Before this line, the speaker had described their love in mainly gentle terms to show the sincerity of their feelings, yet what follows is a change in tone to one which appears to be more brutal and threatening.
Through the use of the first person, the poet conveys the strength of feeling in the speaker in their desire for a relationship which is based on honesty.