My love, you know that the best gift you have given me is being by my side; thank you for being with me; you don't know how much I love and adore you.
给这篇翻译加备注
'te quiero y te amo' has the same meaning in english, that of 'love', but because in Spanish are used two different words to express the same emotion - in order to enhance the statement, I have used 'love', as well as 'adore'.