romeo is first introduced as a sensitive romantic man through a conversation through his parents and benvolio
he refers to juliet as being heavenly "o speak againbright angel" act 2 scene 2
he is presented as impulsive when he climbs the walls into capulets garden to see juliet
romeo is presented as more sensible during his confrontation in act 3 scene 1 but mercutio sees this as a lack of honour
after mercutios death, romeo reflects on his changed behaviour using the metaphor " in my temper softened valours steel!" suggesting hes unmanly and dishounourable