If you're looking for a romantic way to say "goodnight I love you" in Spanish, try saying "Buenas noches, te quiero." It's a beautiful phrase that will make your date swoon! For an even more special touch, add in some sweet Spanish phrases like "te extraño mucho" (I miss you so much) or "eres mi mundo entero" (you are my whole world). These small gestures of love and affection will show your date how much you care about them.