Answer:
The character who says those lines is Friar Laurence.
Step-by-step explanation:
Friar Laurence (also spelled Lawrence) is a character in the tragedy "Romeo and Juliet" by William Shakespeare. He functions as a helper and advisor for the couple, not only marrying them, but also coming up with the plan that will, unfortunately, lead to their death.
In Act III, Scene 3, when Friar Laurence says the lines we are analyzing here, Romeo has killed Juliet's cousin, and he ends up being exiled for that. Friar Laurence is trying to console Romeo, reminding him of his good luck. Juliet is alive. Romeo is also alive. That is all that matters. Even if they are now far away from each other, things could have been much worse. Tybalt could have killed Romeo.