B.
He wanted to remember his trip always.
D. The narrator of the poem is a fourteen year old boy, who has lost confidence in himself because of his age and going older (lines 1-4); by his skin breaking out (line 2); the braces he wears (line 30); and due to his paranoia of dying young (lines 8, 15, 32). Illness is not implied as holding him back.
So they could get married asap instead of juliet and romeo having the slightest chance to be wed