I have some suggestions, I don't know will you find them useful.
In the first line, you give a great beggining of the poem.But, I think that you could change one word:
"The space between my fingers and now filled"-I think that instead of "and" you could put "is"I think it would sound better that way.
"When my world is falling
And my name he is calling"-and here, istead of "and"you could put something like"it is my name he's calling"or you don't even have to put anything there and it would be
"my name he is calling"
and I think it would sound better.
I'm at pitty because I can't give you any suggestion how to continue the poem, I have never been in a happy relationship.
But, still, Would you PM me when you finish it?I would really like to read it and see how it would end.
Oh, and I almost forgot, the poem is very good, and the words flew nicely, and I'm already giving you a 5.
Keep it up.
Carla