Light of my life

Maryna's her name, light of my life... Yes, with her, no anguish or strife! She's loving and caring, even scratches my back... With her in my life, there is nothing I lack! Ever so thoughtful, leaves nothing to chance; Even knows what I'm thinking, well in advance! Tasty meals, wholesome, delightful, divine... Intensely loyal, this great love of mine; Ergo my mate...first letter, each line! !