Well, it depends on what he means by "freedom". If he loves his freedom to date other women, then you're inevitably going to be competing with other girls' attention. But if his request for freedom...
Honey: I love you with all my heart. Yours for ever Hugo
Mahal kita (Ma-hall key-tah)
Mahal kita
In our national language which is tagalog you can say "Mahal kita"which means "I love you".