The theme of commitment as it stands in the book is a bit confusing to say the least. During the course of the play, we see Romeo move on from a commitment of the heart (Rosalind), to another commitment with Juliet. Julet, herself, requires a commitment from the young man who claims to love her. The friar commits to supporting them both in a bid to end the feud between their families. This course of commitment unfortunately backfires, as the two young lovers commit themselves to sharing the same fate. Thus, ending both of their lives.