Some romantic things to say to a girlfriend are "I'd love to just hold you tonight" and "What can I do right now to bring a smile to your face?" Women often find it romantic when a male sets his own desires aside to show he is available to love and show affection to his woman. A quote to say to a girlfriend if she is having a bad day is "Don’t worry, sweetheart. Everything’s going to be okay."
A male can also reassure his girlfriend when she is upset by saying, "I love you even when you're upset." Sometimes saying something simple can make a woman happy and touch her heart. For example, if a male sees his girlfriend struggling with something, simply asking, "Can I help you?" shows the woman that he cares. He can also take initiative and say, "You’re having a hard time, babe. Let me take over."
A romantic saying that was originally spoken by Paulo Coelho states, "I love you because the entire universe conspired to help me find you." Another romantic quote for a girlfriend states, "If a hug represented how much I loved you, I would hold you in my arms forever."