Romantic Poem of Deep Commitment

I need a custom poem or short heartfelt message built around the line “I am his and he is mine.” It will be a gift for my boyfriend/girlfriend, so every word should radiate unwavering love, devotion, and a sense that we belong to one another completely... (Budget: $250 - $750 USD, Jobs: Content Creation, Content Writing, Creative Writing, Ghostwriting, Illustration, Poetry, Word Processing, Writing)