A window sill a young athlete
During Act 2 scene 3, friar laurence says "is rosaline that thou didst love so dear, so soon forsaken? (...) The sun not yet thy sighs from heaven clears, thy old groans ring yet in mine ancient ears." Basically, he thinks Romeo musnt truly be in love with Juliet if he had just a couple days or so ago been crying over Rosaline not liking him back. He's reluctant towards romeo's requests to marry juliet because he thinks its too soon for romeo to know he is in love with juliet.
The arrival of an unwanted thing or person
Something good happened. The best thing to happen to that individual all day
To try and solve a problem or assist in some way
These are idioms