As a poem, it's pretty much perfect as it is. I'd make sure to capitalize all the"i"s you're using, because you're worth more than the lower case, and a person needs to show some respect to herself. Especially a woman.
If you make the poem any longer, you'll be writing away from what you've said. Any shorter, and you'll be picking away at it. I don't know if it'll correct your boyfriend situation, but it's a very nice piece of art. You have a right to be very pleased with yourself.