I think it's beautiful that your work is inspired by your girlfriend, never let that love that you share go. We are somewhat alike, my love poetry especially is inspired by my Fiance...
Your poem was really touching, and I liked the emotions you tried to express, however I feel there could be some improvement in parts.
The first few lines don't seem in a very poetical format, same with the final three lines...changing these could really improve the quality of this write.
The middle part of the poem I liked, it was clearly from the heart, and it worked poetically too.
Good work, keep writing.