1 That the 'you' in the poem is not yet ready for the confrontation with him- or herself. ('The time will come …')
2 – 'with elation' (l.2)
'smile' (l.5) 'love again' (l.7) 'Feast' (l.15)
3 – 'your self' (l.7)
'who' (l.9) 'whom' (l.10) 'who' (l.11)
4 The character should celebrate this 'new' friendship.
5 The 'you' in the poem has lost his love for him-/herself. Now, by accepting him-/herself, this character will once again love
The 'you' in the poem has been in a relationship with someone else. Now that relationship is over and the person is alone, but learns to love himself or herself. So it's love for self coming after love for another.