Mercutio doesn't have any particular thoughts about women or fate and destiny. He is young and just having fun. He doesn't take things seriously. Although he is reckless, he does things and control them. He creates his destiny - that until his fate is taken out of his control.
Gem is convinced that Atticus will win the case because of all the evidence he has
Iambic pentameter is a metric parameter that defines rhythm and the emphasis of syllables in a line of a poem. Iambic is a beat with a combination of one unstressed syllable with one stressed syllable. While pentameter is a rhythm composition of five metrics. So Iambic pentameter has a line of five non-stressed-stressed syllables.
Shakespeare’s “Sonnet 100” has fourteen-line in Iambic pentameter which the emphasis contributes to highlight the important words and the rhythm intensifies the emotional impact, which are in these two options:
The stresses highlight important words and concepts.
The regular rhythm intensifies the emotional impact.