This is such a sensitive episode, first love, betrayal, brotherly love, parental love. It all made this a very powerful and emotional episode.
The most dramatic and heart wrenching scene came at the end. Jack and Grace standing at Bobby's hospital bed and Grace talking to Jack about parenting. Then in a small voice Jack says: But I'm not a parent."
That scene almsot broke my heart. Sooo very well written and excellent acted by both actors involved. Matt Long should have gotten an Emmy for delivery of that line along, irrespective of the rest of the episode.
Very, very well done and a highlight of the series.